Answer:
George : Carl : Alex = 1 : 12 : 4
Step-by-step explanation:
let a = Alex's age in years
let g = George's age in years
let c = Carl's age in years
Given:
Alex is 12 years older than George⇒ a = 12 + g
⇒ g = a - 12
Given:
Carl is three times older than Alex⇒ c = 3a
Given:
The sum of their ages is 68⇒ a + g + c = 68
Substitute the first two equations in the last equation and solve for a:
⇒ a + (a - 12) + 3a = 68
⇒ 5a - 12 = 68
⇒ 5a = 80
⇒ a = 16
Substitute the found value of a into the other equations to find g and c:
⇒ g = 16 - 12 = 4
⇒ c = 3(16) = 48
Therefore:
Alex = 16 years oldGeorge = 4 years oldCarl = 48 years oldRatio
George : Carl : Alex = 4 : 48 : 16
Reduce by dividing by 4 → 1 : 12 : 4
Charles needs a $10,000 loan in order to buy a car. Which loan option would allow him to pay the LEAST in interest? A) A 2-year loan with a 4. 75% interest rate compounded annually. B) A 3-year loan with a 4. 00% interest rate compounded annually. C) A 4-year loan with a 3. 75% interest rate compounded annually. D) A 5-year loan with a 3. 00% interest rate compounded annually
The loan option that would allow Charles to pay the LEAST in interest is option A.
What is Compound Interest?Compound Interest is a process where the interest is credited to the initial amount and interest, on the whole, is charged again. and this continues for t period of time.
It is given by the formula,
[tex]A=P(1+r\%)^n[/tex]
where A is the value after t period of time, P is the principal amount, and,
r is the rate of interest.
A.) Principle amount = $10,000
Time Period of loan = 2 years
Rate of Interest = 4.75% per annum
Now, the total amount can be written as
[tex]=P(1+r\%)^n\\\\= \$10,000 \times (1+0.0475)^2\\\\= \$10,972.56[/tex]
The interest will be = $10,972.56 - $10,000 = $972.56
B.) Principle amount = $10,000
Time Period of loan = 3 years
Rate of Interest = 4.00% per annum
Now, the total amount can be written as
[tex]=P(1+r\%)^n\\\\= \$10,000 \times (1+0.04)^2\\\\= \$11,248.64[/tex]
The interest will be = $11,248.64 - $10,000 = $1,248.64
C.) Principle amount = $10,000
Time Period of loan = 4 years
Rate of Interest = 3.75% per annum
Now, the total amount can be written as
[tex]=P(1+r\%)^n\\\\= \$10,000 \times (1+0.0375)^2\\\\= \$11,586.5[/tex]
The interest will be = $11,586.5- $10,000 = $1,586.5
D.) Principle amount = $10,000
Time Period of loan = 5 years
Rate of Interest = 3.00% per annum
Now, the total amount can be written as
[tex]=P(1+r\%)^n\\\\= \$10,000 \times (1+0.03)^5\\\\= \$11,592.74[/tex]
The interest will be = $11,592.74 - $10,000 = $1,592.74
Hence, the loan option that would allow Charles to pay the LEAST in interest is option A.
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what is 5x90-100 and divided by 2
7. A shop has 8 different shirts and 4 different jeans. How many ways are there to select two items so that at least one jean is chosen
what is the length of the line segment that has the endpoints A (-3,2) and B (1,0)
Distance measure how far an object have gone. The length of the line segment that has the endpoints A (-3,2) and B (1,0) is 2√5.
How to calculate the distance between two pointsThe formula for calculating the distance between two coordinates is expressed as:
D = √(x2-x1)²+(y2-y1)²
Given the coordinate points A (-3,2) and B (1,0), the length of the line segment that has the endpoint is given as:
D = √(0-2)²+(1+3)²
D = √(2)²+(4)²
D = √16+4
D=√20
D = 2√5
Hence the length of the line segment that has the endpoints A (-3,2) and B (1,0) is 2√5
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Delta Math: Angle Terminology with Equations
Answer:
x = 13
Step-by-step explanation:
The relevant fact about vertical angles is that they are congruent, their measures are equal. This lets you write an equation relating the expressions for the measures of angles A and B.
__
∠A = ∠B
(8x -12)° = (6x +14)° . . . . . substitute given expressions
2x = 26 . . . . . . . . . . . divide by °, add 12-6x
x = 13 . . . . . . . . . . divide by 2
I NEED HELP RN PLSS I HAVE NO TIME LEFT
Answer:
B
Step-by-step explanation:
yes, the angles are the same.
and the scale factor is
NS / GA = 15/12 = 5/4
Another representation, in polar coordinates, of the point (1 , 5pi/6) is (___ , 11pi/6)
The representation, in polar coordinates, of the point (1 , 5pi/6) is (-1, 11pi/6).
What is a polar coordinate?It should be noted that polar coordinate simply means a coordinate system where the point on the plane is determined by a distance and reference point.
In this case, the representation, in polar coordinates, of the point (1 , 5pi/6) is (-1, 11pi/6). When graphing the polar coordinate, the pole should be moved in a direction opposite the given positive angle.
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Answer:
-1
Step-by-step explanation:
trust
Bruce collects the data on four electric circuits listed in the table. a 3 column table with 4 rows. the first column is labeled circuit with entries w, x, y, z. the second column is labeled voltage in volts with entries 18, 24, 34, 12. the last column is labeled resistance in ohms with entries 38, 34, 70, 18. bruce must report any circuits that deliver more than 4.0 c of charge in 8.0 s. which lists every circuit that bruce must include in his report? x and z x and y w and y w and z
The Bruce must include X and Z in his report.
We have given the data on four electric circuits listed in the table
For w :
Voltage, V=18\ V
resistance, [tex]R=38\ \Omega[/tex]
What is the formula for ohm's low?The formula of Ohm's low is V=IR
[tex]I=\dfrac{V}{R}[/tex]
[tex]I=\dfrac{18\ V}{38\ \Omega}[/tex]
I=0.47
[tex]q=0.47\times8[/tex]
So charge,q=It
q=3.76\ C
For x :
Voltage, V=24\ V
[tex]resistance, R=34\ \Omega[/tex]
so, V=IR...(Ohm's low)
[tex]I=\dfrac{V}{R}[/tex]
[tex]I=\dfrac{24\ V}{34\ \Omega}[/tex]
I=0.705
[tex]q=0.705\times8[/tex]
So charge,q=It
q=5.64\ C
For y :
Voltage, V=34\ V
resistance, [tex]R=70\ \Omega[/tex]
so, V=IR.......(Ohm's low)
[tex]I=\dfrac{V}{R}[/tex]
[tex]I=\dfrac{34\ V}{70\ \Omega}[/tex]
I=0.485
[tex]q=0.485\times8[/tex]
So charge,q=It
q=3.88\ C
For z :
Voltage, V=12\ V
resistance, [tex]R=18\ \Omega[/tex]
so, V=IR......(Ohm's low)
[tex]I=\dfrac{V}{R}[/tex]
[tex]I=\dfrac{12\ V}{18\ \Omega}[/tex]
I=0.66
[tex]q=0.66\times8[/tex]
So charge,q=It
q=5.28\ C
Therefore, the circuits X and Z deliver 5.64 C and 5.28 C of charge.
Hence, Bruce must include X and Z in his report.
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Answer: A) X and Z
Step-by-step explanation:
Got it right on edge.
Last Wednesday, students could choose ham or turkey sandwiches for
lunch. The cafeteria made 100 sandwiches in all, 70 of which were turkey.
What percentage of the sandwiches were turkey sandwiches? *
The sum of two polynomials is 8d5 – 3c3d2 5c2d3 – 4cd4 9. if one addend is 2d5 – c3d2 8cd4 1, what is the other addend? 6d5 – 2c3d2 5c2d3 – 12cd4 8 6d5 – 4c3d2 3c2d3 – 4cd4 8 6d5 – 4c3d2 5c2d3 – 12cd4 8 6d5 – 2c3d2 – 3c2d3 – 4cd4 8
The sum of two polynomials is 8d^5 - 3c^3d2 +5c^2d^3 - 4cd^4 +9
2d^5 - c^3d^2 +8cd^4 +1 would be 6d^5 - 2c^3d^2+ 5c^2d^3 - 12cd^4 +8.
What are polynomials?Polynomials are those algebraic expressions that consist of variables, coefficients, and constants. The standard form of polynomials has mathematical operations such as addition, subtraction, and multiplication.
Given that
[tex]8d^5 - 3c^3d2 +5c^2d^3 - 4cd^4 +9\\[/tex]
Now
if one is added i.e.
[tex]2d^5 - c^3d^2 +8cd^4 +1,[/tex]
Now let us assume the other polynomial be x
So,
[tex]8d^5 - 3c^3d2 +5c^2d^3 - 4cd^4 +9\\[/tex] = x + [tex]2d^5 - c^3d^2 +8cd^4 +1,[/tex]
x = [tex]8d^5 - 3c^3d2 +5c^2d^3 - 4cd^4 +9\\[/tex] - ( [tex]2d^5 - c^3d^2 +8cd^4 +1,[/tex])
x = [tex]6d^5 - 2c^3d^2+ 5c^2d^3 - 12cd^4 +8[/tex]
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The average daily temperature, t, in degrees fahrenheit for a city as a function of the month of the year, m, can be modeled by the equation t = 35 cosine (startfraction pi over 6 endfraction (m 3) 55, where m = 0 represents january 1, m = 1 represents february 1, m = 2 represents march 1, and so on. which equation also models this situation? t = negative 35 sine (startfraction pi over 6 endfraction m) 55 t = negative 35 sine (startfraction pi over 6 endfraction (m 3)) 55 t = 35 sine (startfraction pi over 6 endfraction m) 55 t = 35 sine (startfraction pi over 6 endfraction (m 3)) 55
The answer will be t=-35Sin{[tex]\pi[/tex]/6m)+55 average daily temperature, t, in degrees Fahrenheit for a city as a function of the month of the year.
What is temperature?Temperature is the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
For the equation: 35cos(pi/6(m+3)+55)
Simplify it by multiplying pi/6 in the bracket values:
[tex]=35 Cos (\dfrac{\pi m}{6}+\dfrac{3\pi }{6}+55)[/tex]
[tex]=35 Cos(\dfrac{\pi m}{6}+55+\dfrac{\pi}{2})[/tex]
Now suppose x = m.pi/6+55, while pi/2 = 90⁰
As per law cos(x+90⁰)=-sin(x)
so,cos((m.pi/6)+55+90⁰=-sin((m.pi/6)+55)
Hence answer will be
[tex]=-35Sin(\dfrac{\pi m}{6}+55)[/tex]
The law cos(x+90⁰)=-sin(x) can be proved by putting y=90⁰ in the following formula,
cos(x+y)=cos(x).cos(y)-sin(x).sin(y)
Hence the answer will be t=-35Sin{[tex]\pi[/tex]/6m)+55 average daily temperature, t, in degrees Fahrenheit for a city as a function of the month of the year.
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Answer:
A
Step-by-step explanation:
t = negative 35 sine (StartFraction pi Over 6 EndFraction m) + 55
A scientist wants to find
out how the properties of water change
when salt is added to it. For every cup of
1
water she has, she replaces of it with
salt. If she has 24 cups of water, how
many cups will she replace with salt?
8
Answer:
the answer 192(If Multiplied)
The circle above has center O, the length of arc ADC is 57, and x = 100. What is the length of arc ABC ?
The length of arc ABC with center O and radius of 9 units is 13π.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Let r represent the radius of the circle. Hence:
arc ADC = (100 / 360) * 2πr
5π = (100 / 360) * 2πr
r = 9 units
arc ABC = (260 / 360) * 2π(9) = 13π
The length of arc ABC with center O and radius of 9 units is 13π.
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3x2-9=0 GCF. It’s Precalculus btw
Answer:
x = ± [tex]\sqrt{3}[/tex]
Step-by-step explanation:
3x² - 9 = 0 ( add 9 to both sides )
3x² = 9 ( divide both sides by 3 )
x² = 3 ( take square root of both sides )
x = ± [tex]\sqrt{3}[/tex]
or
3x² - 9 = 0 ← factor out 3 from each term
3(x² - 3) = 0
equate x² - 3 to zero and solve for x
x² - 3 = 0 ( add 3 to both sides )
x² = 3 ( take square root of both sides )
x = ± [tex]\sqrt{3}[/tex]
please help me with question 8
Answer:
[tex] \red{ \rule{1pt}{500000pt}}[/tex] [tex] \red{ \rule{1pt}{500000pt}}[/tex]
Step-by-step explanation:
Nadia needs one cup of ice cream for every student in her class for their year-end party. The ice cream is only sold in pints. If there are 24 students in her class, how many pints of ice cream will she need? Describe how to solve this problem.
The pints of ice cream for the students is an illustration of metric units
Nadia needs 12 pints of ice cream for the 24 students
How to determine the pints of ice cream?The given parameter is:
Students = 24
She needs one cup for each student in the class.
So, the number of cups needed is:
Cups = 24
1 cup makes 1/2 pint.
So, we have:
Pint = 1/2 * 24
Pint = 12
Hence, Nadia needs 12 pints of ice cream for the 24 students
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A cylinder has a height of 15 yards its volume is 15,260.4 what is the radius of the cylinder
Step-by-step explanation:
As it is given that, a cylinder has a height of 15 yards and the volume of the cylinder is 15,260.4 cubic yards and we are here to find the radius of the cylinder.
[tex] \: [/tex]
We know that,
[tex]{ \longrightarrow\qquad{\frak {\pmb{ \pi {r}^{2}h = Volume_{(cylinder) } }}}} \\ \\[/tex]
Where,
r is the radius of the cylinder.h is the height of the cylinder.Here, we will take the value of π as 3.14 approximately .[tex] \: [/tex]
Now, we will substitute the given values in the formula :
[tex] \: [/tex]
[tex]{ \longrightarrow\qquad{\sf {\pmb{ 3.14 \times {r}^{2} \times 15 = 15260.4 }}}} \\ \\[/tex]
[tex]{ \longrightarrow\qquad{\sf {\pmb{ {r}^{2} \times 47.1 = 15260.4 }}}} \\ \\[/tex]
[tex]{ \longrightarrow\qquad{\sf {\pmb{ {r}^{2} = \dfrac{15260.4}{47.1} }}}} \\ \\[/tex]
[tex]{ \longrightarrow\qquad{\sf {\pmb{ {r}^{2} \ = 324 }}}} \\ \\[/tex]
[tex]{ \longrightarrow\qquad{\sf {\pmb{ r = \sqrt{324} }}}} \\ \\[/tex]
[tex]{ \longrightarrow\qquad{ \underline{ \boxed{\pmb {\frak{ r = 18 } }}}}} \: \: \: \bigstar\\ \\[/tex]
[tex] \: [/tex]
Therefore,
The radius of the cylinder is 18 yards .Answer:
Radius of the cylinder is 18 yardsStep-by-step explanation:
Given:
Height of cylinder (H) = 15 yardsVolume of cylinder = 15,260 yd³To Find:
Radius of the cylinderSolution:
Here we are given height and volume of the cylinder. To find the radius of the cylinder We will substitute the value of height and volume in give formula:
Volume of cylinder = πr²h
➝ 15,260.4 = 22/7 × (r)² × 15
➝ 15,260.4 = (r)² × 330/7
➝ 15,260.4 = (r)² × 47.1
➝ 15,260.4/47.1 = (r)²
➝ 324 = (r)²
➝ √324 = r
➝ 18 = r
Hence,
Radius of cylinder is 18 yardsWhat is the value of x?
Answer:
x = 27 units
Step-by-step explanation:
39 / ( 39+ 26) = x / (x+18)
x = 27
Which algebraic expression is a polynomial with a degree of 2? 4x3 − 2x 10x2 − startroot x endroot 8x3 startfraction 5 over x endfraction 3 6x2 − 6x 5
The algebraic expression that is a polynomial with a degree of 2 is
6x^2-6x+5.
What is the degree?The degree of a term of a polynomial is the total sum of the exponents of the variables in each term.
The highest degree of the polynomial is considered the degree of the polynomial.
For the first option,
[tex]4x^3-2x+10[/tex]
The highest degree is 3.
The second option is,
[tex]x^2-8x^3+3[/tex]
This polynomial also has a degree of 3.
The third option is,
[tex]6x^2-6x+5[/tex]
This last option has a degree of 2.
Therefore the correct answer is option C.
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Answer:The answer is C
Step-by-step explanation:Edge 2022 :)
Ponzi saves dimes and quarters. She has 12 coins adding up to $1.80. How many dimes does she have?
answer please fast fast fast
Answer:
9 is A 10 is D
not sure of the other two
Step-by-step explanation:
9 increases by 4 every time
10 increases by 7 every time
Answer:
9. A
10. D
11. D
12. A
Step-by-step explanation:
9. Look at the pattern; 6+4=10, 10+4=14, 14+4=18, 18+4=22.
10. Same thing for number nine.
11 & 12. Its just vocab
Solve for bbb.
4b+5=1+5b4b+5=1+5b4, b, plus, 5, equals, 1, plus, 5, b
b=b=b, equals
Answer:
Step-by-step explanation:
Last year, rusty’s tools experienced $67,550 in net sales, creating a gross profit of $50,338. if rusty had a total operating expense of $35,200 last year, what was his net profit margin? a. 22.4% b. 52.1% c. 74.5% d. 79.0%
The Net profit margin is 22.41%
Rusty's Tool experienced $67550 in net sales, creating a gross profit of $50338.
If Rusty had a total operating expense of $35200 then we have to find the net profit margin.
Since profit $50338 includes the operating expense of $35300 then net profit will be
= $50338 - $33500
= $15138
Now the selling price is given as $67550.
What is the formula for profit margin?
Profit margin = (Net profit/selling price) 100
Profit margin =151.38/675.50=22.41 %
Therefore, the answer is profit margin = 22.41%.
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HELP WILL GIVE 20PTS PLEASE HELP ASAP
Answer:
hi, where's mt 20pts
Step-by-step explanation:
0.3
12+6+9+13=40
12/40 (or 3/10 simplified)
Thus, 0.3 as a decimal
Hope this helps!
please help! What fractional part of one semicircle does the labeled angle represent? Express
your answer as a fraction in simplest terms. Then, express the labeled angle in radian
measure.
280°
Let's consider what the problem wants us to find:
fractional part covered by the labeled angleangle in radiansLet's find the fractional part:
⇒ the fractional part is equal:
[tex]\frac{degree-covered-by-angle}{total-angle} =\frac{280}{180} =\frac{2*2*7*10}{2*2*3*3*5} =\frac{7*10}{3*3*5} =\frac{70}{45}=\frac{14}{9}[/tex]
Answer: The angle 280 degrees covers 14/9 of a semicircle.
Let's find the angle measure in radians:
⇒ we know that [tex]2\pi[/tex] radians are equal to 360 degrees
⇒ to convert any degree to radians, you must multiply [tex]\frac{\pi }{180}[/tex]
so [tex]280*\frac{\pi }{180} =\frac{28}{18}*\pi =\frac{28\pi }{18}=\frac{2*14*\pi }{2*9} =\frac{14\pi }{9}[/tex]
Answer: The angle 280 degrees in radians is [tex]\frac{14\pi} {9}[/tex] which in terms of [tex]\pi[/tex] is
14/9
Hope that helps!
A rectangular driveway is 7 feet wide, and it has an area of a square feet. How long is the driveway?
Please give how to solve every step
☆ Thank you ☆
Answer:
x = a/7
Step-by-step explanation:
Area is length x width, so let's call our unknown, the length, x
So the total area is 7 (the width) times x
If the total area is a, then we can write the equation a = 7(x)
Next, we have to isolate the variable for the length, x
To do this, we divide both sides by 7, leaving a/7 = x, or x = a/7
Nina graphs the function y=⌊x⌋ to learn the properties of the parent floor function. what is the value of y when x=5.7? 5 5.50 5.75 6
The values of y when x=5.7 will be 5. In the graphs, the function is represented as y=⌊x⌋
What is a graph?A diagram depicting the relationship between two or more variables, each measured along with one of a pair of axes at right angles.
In the graphs the function y=⌊x⌋
The value of the y obtaining will be the whole number of the left axis of the integers.5 is the nearest whole number to the 5.7.
The given value of the function is ;
y = [ 5.7 ] = 5
Hence the value of the y is 5.
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Answer:
A. 5Step-by-step explanation:
What's the answer? I need it asap!
Volume of rectangle is
10 times 5 times 3
150 cm
3.14 times radius times 2 times height
So, 50.24 Cm
So its 200.24 Cm
∠ROP forms a right triangle.
Find the measure of ∠ROQ.
31°
hope it helps......!!!!!
Convert the polar representation of this complex number into its standard form: z=4(cos5pi/6 + i sin 5pi/6)
The complex number z = 4(cos(5pi/6) + isin(5pi/6)) is given as z = -3.464 + 2i in standard form
What is a complex number?Complex numbers are the numbers which is in the form of:
a + ib where, a,b are real numbers and 'i' is an imaginary number.
The complex number can also be represented in polar form as:
z = r(cosФ + isinФ)
Given the complex number:
z=4(cos(5pi/6) + isin(5pi/6)), hence converting to standard form gives:
z = -3.464 + 2i
The complex number z = 4(cos(5pi/6) + isin(5pi/6)) is given as z = -3.464 + 2i in standard form
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Answer:
-2 square root 3 + 2i
Step-by-step explanation: