the answer choices are a. 5599ft B.8049 ft C.12822ft D.16098ft

Answer: D $41.26

Step-by-step explanation:

   We will follow the steps given in the question. If it costs the shop $16.88, we will add $3.75 and double it.

2(16.88 + 3.75) = $41.26

              D $41.26

Answer: A $34.82

Step-by-step explanation:

   First, we will follow the steps given in the question. If it costs the shop $12.99, we will add $3.75 and double it.

2(12.99 + 3.75) = $33.48

   Next, we will add the sales tax to this amount.

$33.48 + $1.34 = $34.82

              A $34.82

Answer:

Step-by-step explanation:

If it takes him one hour to get dressed and make his bed

then another to eat breakfast + brush his teeth

that's two hours total because

1hr+1hr=2hrs

Using chain rule, the derivative of the function is 1 / [4x^(3/4) (1 + x^(1/2))].

Let u(x) = √4. Then we can write the given function as d/dx[tan^-1(u(x))].

Recall that the chain rule for differentiation states that d/dx[f(g(x))] = f'(g(x)) * g'(x). Applying this to our function, we have:

d/dx[tan^-1(u(x))] = [d/dx(tan^-1(u))] * [d/dx(u(x))]

To find d/dx(tan^-1(u)), we use the formula for the derivative of the inverse tangent function: d/dx[tan^-1(u)] = u'(x) / [1 + u(x)^2].

To find u'(x), we differentiate u(x) = sqrt4 with respect to x using the chain rule as follows:

d/dx[√4] = (1/2)x^(-3/4) * (d/dx)(x) = (1/2)x^(-3/4)

Therefore, u'(x) = (1/2)x^(-3/4).

Substituting u(x) and u'(x) into the formula for the derivative of the inverse tangent function, we get:

d/dx[tan^-1(u(x))] = [1 / (2x^(3/4) * (1 + x))]

Finally, substituting this expression for d/dx(tan^-1(u)) and d/dx(u(x)) back into our original chain rule expression from step 2, we get:

d/dx[tan^-1(√4)] = [1 / (2x^(3/4) * (1 + x))] * (1/4)x^(-3/4)

Simplifying the expression in step 6 by multiplying the two terms in the denominator and bringing x to the common denominator, we get:

d/dx[tan^-1(√4)] = 1 / [4x^(3/4) (1 + x^(1/2))]

Therefore, the derivative of the function d/dx[tan^-1(√4)] is 1 / [4x^(3/4) (1 + x^(1/2))].

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Answer:92 centimetres

Step-by-step explanation:

Answer:

N=8

Step-by-step explanation:

61 + 4n = 3.1n + 68.2

        .9n = 7.2

          n = 8

Answer:

Step-by-step explanation:

2,800,000,000

according to the question the volume of the right rectangular prism is 67.5 cubic inches.

Volume is characterized as the space involved inside the limits of an article in three-layered space. The capacity of the object is another name for it.

A right rectangular prism's volume can be calculated by multiplying its lengths, width, and height. The prism's measurements are 3, 3/4, 5, & 4 1/2 inches.

First, we need to convert 4 1/2 to an improper fraction:

4 1/2 = (4 x 2 + 1)/2 = 9/2

Now, we can multiply the dimensions together to find the volume:

Volume = length x width x height

Volume = 3 x 3/4 x 5 x 9/2

Volume = 67.5 cubic inches

Hence, the bottom rectangular prism has a 67.5 cubic inch volume.

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It will take Mr. White at least 3 years to earn $165 in interest at an annual simple interest rate of 5% on his $550 deposit.

To solve the given problem, we can use the formula for simple interest:

I = P × r × t

P = $550 is the initial deposit

r = 0.05 is the annual interest rate

I = $165 is the amount of interest earned

We can rearrange the formula to solve for t:

t = I ÷ (P × r)

Substituting in the values we know,

t = $165 × ($550 × 0.05)

t = 3 years

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Answer:

Step-by-step explanation:

You can solve this 2 ways:

1) just count the number of units from one point to the other

2) calculate it using the coordinates of the points and the distance between 2 points formula:  d = √(x2-x1)²+(y2-y1)²

A(-7, 6)     B(7, 6)     C(7, -5)     D(-7, -5)

AB = √(7--7)²+(6-6)² = √14² = 14

BC = √(7-7)²+(-5-6)² = √-11² = 11

CD = √(-7-7)²+(-5--5)² = √-14² = 14

AD = √(-7--7)²+(-5-6)² = √-11² = 11

Answer:

Hope this helps

Step-by-step explanation:

△ABC - Find the ratios and simplify them if necessary

[tex]\frac{8}{10} =\frac{4}{5}\\\\\frac{8}{6}= \frac{4}{3} \\\\\frac{10}{6}= \frac{5}{3}[/tex]

△DEF - Find the ratios (they can't be simplified)

[tex]\frac{4}{5}\\\\\frac{4}{3} \\\\\frac{5}{3}[/tex]

The solutions to the equation:

8. The value of the integral is 0.

9. The value of the integral is approximately -0.336.

10. The value of the integral is π(b - a)/4

11. The value of the integral is π/4 - (1/2)(1 - e^4).

12. The value of the integral is -8π.

13. The value of the integral is π/64 + π/(32√2).

8. To evaluate the integral ∫∫R(2x-y) dA over the region R in the first quadrant enclosed by the circle x² + y² = 4 and the lines x= 0 and y=x, we can use polar coordinates.

First, we convert the equations of the circle and line into polar coordinates:

x² + y² = 4 becomes r² = 4

y = x becomes θ = π/4

The region R can be described in polar coordinates as 0 ≤ r ≤ 2 and 0 ≤ θ ≤ π/4. The differential element dA can be expressed in polar coordinates as dA = r dr dθ.

Now we can evaluate the integral:

∫∫R(2x-y) dA = ∫₀^(π/4) ∫₀² (2r²cosθ - rsinθ) r dr dθ

= ∫₀^(π/4) ∫₀² (2r³cosθ - r²sinθ) dr dθ

= ∫₀^(π/4) [r⁴cosθ/2 - r³sinθ/3]₀² dθ

= ∫₀^(π/4) 8cosθ/3 - 8sinθ/3 dθ

= [8/3(sinθ - cosθ)]₀^(π/4)

= 8/3(1/√2 - 1/√2 - (0 - 0))

= 0

Therefore, the value of the integral is 0.

9. To evaluate the integral ∫∫Rsin(x² + y²) dA over the region R in the first quadrant between the circles with center the origin and radii 1 and 3, we can again use polar coordinates.

In polar coordinates, the region R can be described as 1 ≤ r ≤ 3 and 0 ≤ θ ≤ π/2. The differential element dA can be expressed as dA = r dr dθ.

Now we can evaluate the integral:

∫∫Rsin(x² + y²) dA = ∫₀^(π/2) ∫₁³ r sin(r²) dr dθ

= ∫₀^(π/2) [-cos(r²)]₁³ dθ

= ∫₀^(π/2) cos(1) - cos(9) dθ

= sin(1) - sin(9)

≈ -0.336

Therefore, the value of the integral is approximately -0.336.

10. To evaluate the integral ∫∫R y²/x² + y²dA over the region that lies between the circles x² + y² = a² and x² + y² = b² with 0 < a < b, we can use polar coordinates.

In polar coordinates, the region R can be described as a ≤ r ≤ b and 0 ≤ θ ≤ 2π. The differential element dA can be expressed as dA = r dr dθ.

Now we can evaluate the integral:

∫∫R y²/x² + y²dA = ∫₀^(2π) ∫ₐᵇ (r⁴cos²θsin²θ)/(r⁴cos²θ) r dr dθ

= ∫₀^(2π) ∫ₐᵇ sin²θ cos²θ dr dθ

= ∫₀^(2π) [(b-a)/4](cos²θ - sin²θ) d

= ∫₀^(2π) [(b-a)/4](cos²θ - sin²θ) dθ

= [(b-a)/8] ∫₀^(2π) (1 - sin(2θ)) dθ

= [(b-a)/8] (2π - 0)

= π(b - a)/4

Therefore, the value of the integral is π(b - a)/4.

11. To evaluate the integral ∫∫D e^(-x²-y²) dA, where D is the region bounded by the semicircle x = √(4 - y²) and the y-axis, we can use polar coordinates.

In polar coordinates, the region D can be described as 0 ≤ r ≤ 2 and 0 ≤ θ ≤ π/2. The differential element dA can be expressed as dA = r dr dθ.

Now we can evaluate the integral:

∫∫D e^(-x²-y²) dA = ∫₀^(π/2) ∫₀² e^(-r²) r dr dθ

= ∫₀^(π/2) [-1/2 e^(-r²)]₀² dθ

= ∫₀^(π/2) (1/2 - 1/2e^4) dθ

= π/4 - (1/2)(1 - e^4)

Therefore, the value of the integral is π/4 - (1/2)(1 - e^4).

12. To evaluate the integral ∫∫D cos(√(x²+y²)) dA, where D is the disk with center at the origin and radius 2, we can again use polar coordinates.

In polar coordinates, the region D can be described as 0 ≤ r ≤ 2 and 0 ≤ θ ≤ 2π. The differential element dA can be expressed as dA = r dr dθ.

Now we can evaluate the integral:

∫∫D cos(√(x²+y²)) dA = ∫₀^(2π) ∫₀² r cos(r) dr dθ

= ∫₀^(2π) [2 sin(r) - 2r cos(r)]₀² dθ

= ∫₀^(2π) (-4) dθ

= -8π

Therefore, the value of the integral is -8π.

13. To evaluate the integral ∫∫R arctan(y/x) dA, where R = {(x,y) | 1 ≤ x² + y² ≤ 4, 0 ≤ y ≤ x}, we can use polar coordinates.

In polar coordinates, the region R can be described as π/4 ≤ θ ≤ π/2 and 1/√2 ≤ r ≤ 2. The differential element dA can be expressed as dA = r dr dθ.

Now we can evaluate the integral:

∫∫R arctan(y/x) dA = ∫π/4^(π/2) ∫1/√2² r arctan(tan(θ)) dr dθ

= ∫π/4^(π/2) [(r²θ/2 - r²tan(θ)/4)]1/√2² dθ

= ∫π/4^(π/2) [(2θ - π/2)/8] dθ

= [θ²/16 - (θ - π/4)/8]π/4^(π/2

= [π/16 - (π/4 - π/4√2)/8] - [(π/16 - (π/8 - π/8√2)/8)]

= π/64 + π/(32√2)

Therefore, the value of the integral is π/64 + π/(32√2).

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The question in text format:

8. ∫∫R(2x-y) dA, where R is the region in the first quadrant enclosed by the circle x² + y² = 4 and the lines x= 0 and y=x

9. ∫∫Rsin(x² + y²) dA, where R is the region in the first quadrant between the circles with center the origin and radii 1 and 3

Answer

10. ∫∫R y²/x² + y²dA, where R is the region that lies between the circles x² + y² = a² and x² + y² = b² with 0 < a < b

11. ∫∫D e⁻ˣ²⁻ʸ²dA, where D is the region bounded by the semi-circle x = √4 - y² and the y-axis

12. ∫∫D cos √x² + y² da, where D is the disk with center the origin and radius 2

13. ∫∫R arctan (y/x) dA, where R= {(x,y) | 1 ≤ x² + y² ≤ 4,0 ≤ y ≤ x}

Y follows a binomial distribution, where P(Y=1) is the likelihood that one interval includes.

the likelihood that between 950 and 970 of these intervals will contain the corresponding value

The likelihood that a parameter will fall between two values close to the mean is shown by a confidence interval1. Although there is a known likelihood of success2, there is no assurance that a particular confidence range does indeed capture the parameter. The population parameter is fixed, whereas the confidence interval is a random variable.

Let Y represent one of the 1000 intervals that contain the value. With parameters n=1000 and p=P(Y=1),

Y follows a binomial distribution, where P(Y=1) is the likelihood that one interval includes.

Using the normal approximation to the binomial distribution with continuity correction,

one can determine the likelihood that between 950 and 970 of these intervals will contain the corresponding value.

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The area of the shaded region, we need to subtract the area of the smaller circle from the larger circle. Let's call the radius of the larger circle "r" and the radius of the smaller circle "a".

the area of the shaded region is 3πa^2.

The area of a circle is given by the formula

[tex]A = πr^2.[/tex]

Therefore, the area of the larger circle is πr^2 and the area of the smaller circle is πa^2.
To find the area of the shaded region, we need to subtract the area of the smaller circle from the larger circle:
Shaded area = [tex]πr^2 - πa^2[/tex]
However, we're not done yet because we need to simplify this expression in terms of "a" and in simplified radical form. To do this, we can factor out π from both terms:

Shaded area = π(r^2 - a^2)
We can simplify this expression further by noticing that [tex]r^2 - a^2 [/tex]is actually the difference of two squares, which can be factored as:
[tex]r^2 - a^2 = (r + a)(r - a)[/tex]
Therefore, the area of the shaded region is:
Shaded area = [tex]π(r + a)(r - a)[/tex]
And since we were asked to leave our answer in terms of "a" and in simplified radical form, we can substitute r = 2a (since the diameter of the larger circle is twice the radius of the smaller circle) and simplify:
Shaded area =[tex] π(2a + a)(2a - a) = π(3a)(a) = 3πa^2[/tex]

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Answer:

210 minutes

Step-by-step explanation:

We know that 1 hour = 60 minutes.

3 hours = 3 * 60 = 180 minutes

1/2 hour = 1/2 * 60 minutes = 30 minutes

3 1/2 hours = 180+30 = 210 minutes

Answer:

210 minutes

Step-by-step explanation:

To convert from hours to minutes, we can multiply by a conversion ratio:

[tex]\left(3 \dfrac{1}{2} \text{ hr}\right)\left(\dfrac{60 \text{ min}}{1 \text{ hr}}\right)[/tex]

↓ converting the mixed number to a fraction

[tex]\left(\dfrac{7}{2} \text{ hr}\right)\left(\dfrac{60 \text{ min}}{1 \text{ hr}}\right)[/tex]

↓ canceling the hours unit

[tex]\dfrac{7}{2} \cdot 60 \text{ min}[/tex]

↓ multiplying

[tex]\boxed{210\text{ min}}[/tex]

__

Note: When we multiply something by a conversion ratio, we are not changing the value of it, but rather changing its form. In other words, a conversion ratios has a value of 1, and anything multiplied by 1 is itself. To illustrate this:

[tex]\dfrac{60 \text{ min}}{1 \text{ hr}} = \dfrac{60 \text{ min}}{60\text{ min}} = \dfrac{1}{1} = 1[/tex]

because

[tex]1 \text{ hr} = 60 \text{ min}[/tex].

Answer:

To add mixed numbers, we first need to convert them to improper fractions. 5 2/3 = (5 x 3 + 2)/3 = 17/3 6 21/23 = (6 x 23 + 21)/23 = 139/23 Now we add the fractions together: 17/3 + 29/69 + 139/23 To add these fractions, we need to find a common denominator. The smallest common denominator for 3, 69, and 23 is 3 x 69 x 23 = 15087. So we rewrite each fraction with the common denominator: 17/3 x 5039/5039 = 85763/15087 29/69 x 219/219 = 633/15087 139/23 x 657/657 = 9123/15087

The distance between the diamond and the circle is approximately 5.83 units.

What is the distance between two points?

[tex]d = √((x_2 - x_1)^2 + (y_2 - y_1)^2)[/tex]

Where [tex](x_1,y_1) and (x_2,y_2)[/tex] are two co-ordinates.

Here we want to find the distance between the diamond and the circle.

We need to use the distance formula.

Here position of diamond is (2,3) and circle is (5,8)

Substituting the values into the formula, we get:

[tex]d = √((5 - 2)^2 + (8 - 3)^2) \\ = √(3^2 + 5^2) \\ = √34 \\ ≈ 5.83 units[/tex]

Therefore, the distance between the diamond and the circle is approximately 5.83 units.

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Correct question is "Position of a diamond in the point (2,3) and a circle in (5,8). How many units are between the diamond and the circle?"

The distance between the diamond and the circle is approximately 5.83 units.

Here we want to find the distance between the diamond and the circle.

Here position of diamond is (2,3) and circle is (5,8)

Substituting the values into the formula, we get:

d²= ([tex]x_{2} -x[/tex]₁)²+(y₂-y₁)²

Therefore, the distance between the diamond and the circle is approximately 5.83 units.

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Answer:

Step-by-step explanation:

To rewrite the fractions 2/5 and 4/15 with a least common denominator, we need to find the least common multiple (LCM) of their denominators, which is 15.

For 2/5, we can multiply the numerator and denominator by 3 to get:

2/5 = (2 x 3)/(5 x 3) = 6/15

For 4/15, we don't need to do anything since its denominator is already 15.

Therefore, the equivalent fractions with a least common denominator are:

2/5 = 6/15

4/15 = 4/15

Answer: 2/5 and 133/100/15

Step-by-step explanation:

[tex]x^{2} y^{4}[/tex]

After answering the presented question, we can conclude that probability Therefore, the probability of 30 or more seconds between vehicle arrivals is approximately 0.0498.

Probability is a measure of how likely an event is to occur. It is represented by a number between 0 and 1, with 0 representing a rare event and 1 representing an inescapable event. Switching a fair coin and coin flips has a chance of 0.5 or 50% because there are two equally likely outcomes. (Heads or tails). Probabilistic theory is an area of mathematics that studies random events rather than their attributes. It is applied in many fields, including statistics, economics, science, and engineering.

Sketch of exponential probability distribution with mean of 12 seconds:

   |                            

   |                            

   |              .            

   |             . .            

   |             . .            

   |             . .            

   |             . . .          

   |             . . .          

   |             . . .          

   |             . . .          

   |             . . .          

   |             . . . .        

   |             . . . .        

   |             . . . .        

   |             . . . . .      

   |             . . . . .      

   |_____________. . . . . . .

        0       12             X

The X-axis represents the time between vehicle arrivals, and the Y-axis represents the probability density. The peak of the distribution is at 12 seconds, which is the mean.

b. Probability of the arrival time between vehicles being 12 seconds or less:

Since the mean of the exponential distribution is 12 seconds, we can use the cumulative distribution function (CDF) to find the probability of the arrival time being 12 seconds or less:

[tex]P(X < = 12) = 1 - e^(-12/12) = 1 - e^(-1) ≈ 0.6321[/tex]

Therefore, the probability of the arrival time between vehicles being 12 seconds or less is approximately 0.6321.

c. Probability of the arrival time between vehicles being 6 seconds or less:

[tex]P(X < = 6) = 1 - e^(-6/12) = 1 - e^(-0.5) ≈ 0.3935[/tex]

Therefore, the probability of the arrival time between vehicles being 6 seconds or less is approximately 0.3935.

d. Probability of 30 or more seconds between vehicle arrivals:

[tex]P(X > = 30) = e^(-30/12) ≈ 0.0498[/tex]

Therefore, the probability of 30 or more seconds between vehicle arrivals is approximately 0.0498.

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The phrase that describes the probability that Claire reaches in without looking and pulls out a strawberry or a cherry chew is "an equal chance" or "50-50 chance".

Chance is represented by probability. The study of the occurrence of random events is the subject of this mathematical subfield. The value is expressed as a number from 0 to 1. Mathematicians have begun to use the concept of probability to predict the likelihood of certain events.

This is because there are 5 strawberry chews and 15 cherry chews in the bag, so

the probability of drawing a strawberry chew is 5/20 or 1/4, and

the probability of drawing a cherry chew is 15/20 or 3/4.

Despite the fact that neither of the outcomes has the same probability, there are only two possible outcomes

Therefore, the probability of Claire drawing either a strawberry or a cherry chew is an equal chance or 50-50.

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The value of {-4,6} is -4.

The braces {} create a set.

The elements in a set are written inside the braces.

When a set contains only two elements, it is considered a set with two elements or a pair of elements.

In this case, the braces {-4,6} contain two elements: -4 and 6.

Thus, the value of this set is the union of these two elements, which in this case is the sum of the two elements: -4 + 6 = 2

The process of solve of the quadratic equation is not correct. As the product of x and (2x+5) is equal to 12. Thus the value of x or 2x+5 never equals to 12. The solutions of the quadratic equation are 4, -3/2

What is an equation?

A mathematical equation is a formula that uses the equals sign to express the equality of two expressions.

The given quadratic equation is

2x² + 5x = 12

2(x² + (5/2)x) = 12

Divide both sides by 2:

x² + (5/2)x = 6

x² + 2 ×(5/4)x +  (5/4)² = 6 +  (5/4)²

(x + (5/4))² = 6 +  (25/16)

(x + (5/4))² = 121/16

x + (5/4)  = ± 11/4

x = 5/4 + 11/4 , 5/4 - 11/4

x = 4, -3/2

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Let's call the rectangle's length x and its width, x - 6.

Since a rectangle has 4 sides and the perimeter of the rectangle

is just the distance around the outside of the figure,

we can create an equation.

This equation will be x + x + x - 6 + x - 6 = 72.

Simplifying on the left gives us 4x - 12 = 72.

Add 12 to both sides to get 4x = 84.

Now divide both sides by 4 to get x = 21.

Since x represents our length, we know that the length is 21 inches.

Answer:

Step-by-step explanation:

A) System οf equatiοns:

Band A: Cοst = $500

Band B: Cοst = $350 + $1.5x, where x is the number οf students.

B) Graph:

Tο graph the system οf equatiοns, we can plοt twο pοints fοr each band. Fοr Band A, we οnly need οne pοint, since it has a flat fee οf $500 regardless οf the number οf students. Fοr Band B, we can chοοse twο values οf x tο find the cοrrespοnding cοsts:

Band A: (0, 500)

Band B: (0, 350) and (100, 500)

The graph is shοwn belοw:

Graph οf Band A and Band B cοsts

Tο find the number οf students fοr which the cοst οf the bands wοuld be equal, we can set the twο equatiοns equal tο each οther:

$500 = $350 + $1.5x

Sοlving fοr x, we get:

x = (500 - 350)/1.5 = 100

Therefοre, if the number οf students is 100, the cοst οf Band A and Band B wοuld be the same.

Part 2:

Let x be the number οf students served, y be the tοtal cοst, a be the fixed cοst, and r be the rate per student served. Then we have the fοllοwing system οf equatiοns:

a + 50r = 450

a + 150r = 1050

Subtracting the first equatiοn frοm the secοnd, we get:

100r = 600

Sοlving fοr r, we get:

r = 6

Substituting r intο the first equatiοn, we get:

a + 50(6) = 450

a = 150

Therefοre, the caterer's fixed cοst is $150 and the rate per student served is $6.

Part 3:

If 100 students cοme tο the dinner dance, the cοst οf Band A wοuld be $500 and the cοst οf Band B wοuld be:

$350 + $1.5(100) = $500

Therefοre, the cοst οf either band wοuld be the same, sο we can chοοse either οne. The tοtal cοst fοr the caterer wοuld be:

$150 + $6(100) = $750

Tο cοver the expenses οf the band and caterer, the tοtal cοst per ticket wοuld be:

($500 + $750)/100 = $12.50

If 200 students cοme tο the dinner dance, the cοst οf Band A wοuld still be $500, but the cοst οf Band B wοuld be:

$350 + $1.5(200) = $650

Therefοre, we shοuld chοοse Band A tο keep the ticket price as lοw as pοssible. The tοtal cοst fοr the caterer wοuld be:

$150 + $6(200) = $1350

Tο cοver the expenses οf the band and caterer, the tοtal cοst per ticket wοuld be:

($500 + $1350)/200 = $9.25

Part 4:

A) Inequality:

Let x be the number οf bοuquets οf daisies and y be the number οf bοuquets οf rοses. Then we have:

25x + 35y ≤ 500

This is because we cannοt spend mοre than $500 οn flοwers.

Tο graph this inequality, we can first graph the equatiοn:

25x + 35y = 500

This represents the bοundary line οf the inequality. We can find twο pοints οn the line by chοοsing twο values οf x:

When x = 0, y = 500/35 = 14.3 (apprοximately)

When x = 20, y = 0

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Answer: 11

Step-by-step explanation: Based on the given conditions, formulate::

Calculate the sum or difference:

Simplify fraction(s): 11

In the question, we can draw the conclusion that, according to the formula, it will take them 10 days to get from City A to City B if they continue travelling at their current average speed of [tex]415 miles[/tex]per day.

A formula is a set of mathematical signs and figures that demonstrate how to solve a problem.

Formulas for calculating the volume of [tex]3D[/tex] objects and formulas for measuring the perimeter and area of [tex]2D[/tex] shapes are two examples.

A formula is a fact or a rule in mathematical symbols. In most cases, an equal sign connects two or more values. If you know the value of one, you can use a formula to calculate the value of another quantity.

We need to know the average pace at which they went to figure how long it would take to get from City A to City B at the same rate.

total distance / time taken = average speed

[tex]415 miles[/tex] per day [tex]2075/ 5[/tex], it would take them [tex]10[/tex] days to get from City A to City B because

Time taken = [tex]2075/415[/tex] per days [tex]= 5 days[/tex]

Therefore it will take them 10 days to get from City A to City B if they continue travelling at their current average speed of [tex]415 miles[/tex]per day.

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