Math 8: One-step equations word problems (writing algebraic expressions)

Answers

Answer 1

Answer:

x puls four is equal to

Step-by-step explanation:


Related Questions

In order to determine whether or not there is a significant difference between the mean hourly wages paid by two companies (of the same industry), the following data have been accumulated. Company A Company B Sample size 90 45 Sample mean $15.75 $15.25 Sample standard deviation $1.00 $0.95 The p-value is 0.0057. At the 5% level of significance, the null hypothesis should be rejected. should be revised. should not be rejected. should not be tested.

Answers

The p-value is 0.0057 and at the 5% level of significance, the null hypothesis should A. be rejected.

What is p-value?

It should be noted that the p-value is used to validate a hypothesis against the observed data.

In this case, the p-value is 0.0057 and at the 5% level of significance, the null hypothesis should be rejected. This is because there's no enough evidence to conclude that there's a significant difference.

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4x2-16=0 gcf pre calc btw

Answers

help him please lol lol

The height of Mountain Pis 1,086 feet. The height of Mountain Q is 4 times the
height of Mountain P. The area model shown below represents one way to find
the height of Mountain

What is the height, in feet, of mountain Q?

Answers

Answer:

4,344 feet

Step-by-step explanation:

Mt. P is 1,086 feet tall. It says that Mt. Q is 4 times that. 1,086 x 4 is 4,344.

4344 Feet Is The Answer

Barrett is 5 years less than half Cayden’s age. If Barrett is 11 years old, what is Cayden’s age?

(Someone help I’ve done this problem multiple times and I keep getting different answers)

Answers

11+5=16
Because he is 5 years under half
16 multiplied by 2 is 32

The age of Cayden is given by the equation C = 32 years old

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

Let the age of Cayden be C

Let the age of Barret be B = 11 years old

And , Barrett is 5 years less than half Cayden’s age

B = ( C / 2 ) - 5

On simplifying the equation , we get

11 = ( C / 2 ) - 5

Adding 5 on both sides , we get

16 = C / 2

Multiply by 2 on both sides , we getr

C = 32 years old

Therefore , the value of C is 32 years

Hence , age of Cayden is 32 years

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The table below shows the value of a car during certain years . Using an exponential model , write an equation for the curve of best fit, then estimate the value of the car in 2016 .​

Answers

The exponential function that gives the value of the car in t years after 2008 is:

[tex]A(t) = 27500(0.88)^t[/tex].

Using the function, the estimate for the value of the car in 2016 is of $9,900.

What is an exponential function?

A decaying exponential function is modeled by:

[tex]A(t) = A(0)(1 - r)^t[/tex]

In which:

A(0) is the initial value.r is the decay rate, as a decimal.

In this problem:

The initial value is of A(0) = 27,500.Considering the first year change, we have that 1 - r = 24200/27500 = 0.88.

Hence, the equation is:

[tex]A(t) = 27500(0.88)^t[/tex]

2016 is 8 years after 2008, hence the value of the car will be given by:

[tex]A(8) = 27500(0.88)^8 = 9900[/tex]

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The exponential function is given as y = 27500(0.88)ˣ and the value of the car in 2016 is $9890

What is an equation?

An equation is an expression that shows the relationship between two or more variables and numbers.

Let y represent the value of the car after x years after 2008, hence:

at x = 0, y = 27500

27500 = ab⁰

a = 27500

At x = 1, y = 24200, hence:

24200 = 27500b¹

b = 0.88

y = 27500(0.88)ˣ

In 2016, x = 8, hence:

y = 27500(0.88)⁸ = 9890

The exponential function is given as y = 27500(0.88)ˣ and the value of the car in 2016 is $9890

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Capital Credit has offered Jackson a credit card loan of $5000 at an interest rate of
13.9% with a monthly payment of $170.65. If he was repay this loan in 3 years how much intrest will he pay?

Answers

Answer:

2000

Step-by-step explanation:

True or false: The solution of 3x=9 is equal to the solution of x – 1=2.

Answers

True because x=3 3x3=9 and 3-1=2

Answer:true

Step-by-step explanation:

The arc length of a sector created by a 90 degrees angle is 2 pi cm. What is the circumference of the entire circle? Express the answer in terms of Pi.


Recall the formula StartFraction Arc length over Circumference EndFraction = StartFraction n degrees over 360 degrees EndFraction.

StartFraction pi over 4 EndFraction centimeters

StartFraction pi over 2 EndFraction centimeters

6 pi centimeters

8 pi centimeters

Answers

Answer:

8 pi cm

Step-by-step explanation:

90 degrees is 1/4 of the entire circle (360 degrees)

 2 pi * 4 = 8 pi  cm

What is the surface area of the following solid figure?

Answers

Answer:

62 in^2

Step-by-step explanation:

When finding the surface area of a trianglular prism, we can use the formula  :  ( S1 + S2 + S3 ) * l + bh.

Now, we simply plug in the values :

( 2.5 +2.5 + 3 ) * 7 + 6

( 8 ) * 7 + 6

56 + 6

62

I NEED HELP FAST PLEASE HELP ME ​ ​

Answers

Answer:

B

Step-by-step explanation:

answer: b
reason: just trust me bro

(100 points) ASAP need help with khan academy practice

Answers

Answer:

125,

Step-by-step explanation:

the answer would be fifteen because 5 to the third power is 125.

Have you used air math it should help just ask a tutor and you’ll get the answer

Simplify this equation...

Answers

Answer: 3) [tex]\frac{x+3}{x}[/tex]

Step-by-step explanation:

Start by factoring the numerator by grouping

[tex]\frac{x^3+2x^2-9x-18}{x^3-x^2-6x} \\\frac{(x^3+2x^2)+(-9x-18)}{x^3-x^2-6x} \\\frac{x^2(x+2)-9(x+2)}{x^3-x^2-6x} \\\frac{(x^2-9)(x+2)}{x^3-x^2-6x} \\\frac{(x-3)(x+3)(x+2)}{x^3-x^2-6x}[/tex]

Now factor the denominator

[tex]\\\frac{(x-3)(x+3)(x+2)}{x^3-x^2-6x}\\ \\\frac{(x-3)(x+3)(x+2)}{x(x^2-x-6)}\\[/tex]

Factor the trinomials by finding two numbers that add to get -1 and multiply to get -6. In this case the numbers are -3 and 2

[tex]\\\frac{(x-3)(x+3)(x+2)}{x(x^2-x-6)}\\\\\\\frac{(x-3)(x+3)(x+2)}{x(x-3)(x+2)}\\[/tex]

Cancel out the terms that are both in the numerator and denominator. In this case they are (x-3) and (x+2)

[tex]\\\frac{(x-3)(x+3)(x+2)}{x(x-3)(x+2)}\\\\\\\frac{(x+3)}{x}\\[/tex]

A small box contains 30 packets of cheese and onion crisps and 20 packets of salt and vinegar crisps
A large box contains 50 packets of cheese and onion crisps and 30 packets of salt and vinegar crisps
A packet of crisps in chosen at random
From which box are you more likely to choose a packet of salt and vinegar crisps

Answers

Answer: small box

Step-by-step explanation:

Large box probability is 30/80= 3/8

Small box = 20/50 =2/5

Which is bigger 3/8 or 2/5

15/40 or 16/40

Answer answer questions answer

Answers

Answer:

-16

Step-by-step explanation:

All you have to do is divide 4 from both sides, you do this so you can get W by itself

4w= -64

/4       /4

w= -16

Answer:  the answer is option b

Step-by-step explanation:

4 times -16 is -64

g(a) = 3a + 2
f(a)=2a-4
Find (g/f)(3)

Answers

Answer:(gf)(3)=g(3)f(3) g(a)=3a+2 or g(3)=3(3)+2=9+2 =11 f(a)=2a−4 f(3)=2(3)−4=6−4=2 g(3)f(3)=112. Answer  

Step-by-step explanation:

Use the bar graph to find the experimental probability of the event.



The experimental probability of spinning a number less than 3 is
.

Answers

Answer: 2 Hope This Is Right!

Step-by-step explanation:

How many bags of grapes had a weight of 3/8 pounds or less?

Answers

8
6/8 = 3/4 Pounds

From the number line we can see that

1 bag of grapes has weight of 1/8 pounds

4 bags of grapes has weight of 1/4 pounds

3 bags of grapes has weight of 3/4 pounds

show your work step by step

Answers

Answer:

Step-by-step explanation:

Using Reflection, ADP and BCP are the same.

If line PD is equal to line PC, angle 1 is equal to angle 2 and angle 3 is equal to angle 4, then line AP is equal and a reflection of line BP, line AD is also equal and a reflection of line BC

In reflected angles, the sides and angles of the shape are not altered.

The original image and reflected shape above are same size and shape therefore triangle ADP and BCP are the same.

When finding an indefinite integral, your answer must include.

Answers

An appropriate answer of a indefinite integral must include the original integral, the solution of that integral including its integration constant.

What must an answer about a indefinite integral of a function include?

A definite integral is an infinitesimal sum derived from a integrable function, that is, a function that exist for all value x within the range of integration.

[tex]\int {f(x)} \, dx = \lim_{n \to \infty} \sum\limits_{i=0}^{n} f(x) \Delta x + C[/tex]     (1)

Where C is the integration constant.

An appropriate answer of a indefinite integral must include the original integral, the solution of that integral including its integration constant. [tex]\blacksquare[/tex]

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Simplify. 3(1 + 5x + y)

Answers

Answer:

Your simplified expression would be 15x + 3y + 3.

Step-by-step explanation:

Rearrange termsDistribute

Solution = 15x + 3y + 3.

I need help with this question.

Answers

Answer:

B quadrant 4

Step-by-step explanation:

to check it, calculate the sin and cos of 300°

Jessica is 17 in five years her age will 5/2 the age of her sister

Answers

Given the information in the question, in three years, the age of Alica would be  53.

What are fractions?

A fraction is a non-integer. It is made up of numerators and denominators. An improper fraction is a fraction where the numerator is larger than the denominator. An example is 5/2/

What will be Alicia's age in 3 years?

The first step is to determine Jessica's age in 5 years : 17 + 5 = 22

The second step is to determine Alica's age in 5 years : 5/2 x 22 = 55

Now, subtract 2 from 55: 55 - 2 = 53

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1. Avenue A runs parallel to Avenue B, and Avenue C runs diagonally across the two streets. Use the marked angles to write and solve an equation to find the value of x. 10x + 6 Avenue A 6x – 18 Avenue C Avenue B​

Answers

The value of the equations related to the angle system related to the two parallel lines (avenues A and B) cut by a third diagonal line (avenue C) is equal to to 12.

How to determine the value of x from a system of angles

In this question we must apply all Euclidean theorems of angles between two parallel lines cut by a third diagonal line. The internal angle between avenues B and C equals 6 · x - 18 and the external angle between avenues A and C equals 10 · x + 6.

By alternate internal angles between parallel lines we infer the measure of the internal angle between the avenues A and C equals 6 · x - 18, and definition of supplementary angles we have the following expression:

(6 · x - 18) + (10 · x + 6) = 180

16 · x - 12 = 180

16 · x = 192

x = 12

The value of the equations related to the angle system related to the two parallel lines (avenues A and B) cut by a third diagonal line (avenue C) is equal to to 12. [tex]\blacksquare[/tex]

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QUICKK HELP PLSSSSSS

Answers

Answer:

2/3 cup

Step-by-step explanation:

Use the given proportion

4g = 6a

Solve this for a, divide both sides by 6:

6a/6 = 4g/6a = (2/3)g

It means

2/3 cup of a guice is used for 1 cup of apple juice

Kyra went to the grocery store on Monday and bought 5 apples and 2 oranges for a total of $3.45. On Thursday she bought 3 oranges and 7 apples for a total of $4.90. How much do the apples and oranges cost?

Answers

Answer:

The apples and oranges cost .49 cents each

Step-by-step explanation:

When we do 5 + 2 we get 7, 7 is our number of apples and oranges combined.

Next we do 3.45 divided by 7 and get .49

When we do the same for thursday, we get the same answer which confirms our answer.

Edmundo brought 4 trading cards yesterday. he brought some more trading cards today. now he has 12 trading cards. if n represents the number of trading cards Edmundo bought today, which equation is correct?

Answers

Answer:

4+n=12

Step-by-step explanation

yesterday= 4

today= unknown

4+n=12

Answer:

The equation that you would use would be, 4+n=12

`

Step-by-step explanation:

I hope this helps you :)

Pls mark brainliest :P

`

`

`

W/ <3...

Tori


What is the product of 4 x 23? Type in the answer.

Answers

Answer:

92

Step-by-step explanation:

Answer:

92

Step-by-step explanation:

What is the product of 4 x 23? Type in the answer?

=> 23 × 4

=> 92 answer

hope that helps...

Solve the inequality. 2(4 2x)≥5x 5 x≤−2 x≥−2 x≤3 x≥3

Answers

Answer:

x > 1, x5 < - 2/5

 

Step-by-step explanation:

What our data tells us is also known as the what?

A. Coefficient

B. Correlation

C. Proof

D. Guide

Answers

I believe the answer is B

URGENT! I NEED HELP
You want to buy 700 of an item, but it has to cost $200 or less. What is the maximum amount that the item can cost to meet your criteria?

Answers

Answer:

0.28571428571

Step-by-step explanation:

because 200 ÷ 700 will equal that weird number

Max is around 29 cents each
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