Math please help 20 points plus brainly if you can answer each question.


The perimeter of a rectangle is 40 cm. The length is 14 cm.
Let x = width of the rectangle.

Ravi says he can find the width using the equation 2(x + 14) = 40.
Fran says she can find the width using the equation 2x + 28 = 40.

Answer the questions to solve the equations and to compare the steps and solutions.

1. Which of these is the most helpful first step for solving Ravi's equation, 2(x + 14) = 40?

Circle the best answer.

Add 14 to both sides
Subtract 14 from both sides
Divide both sides by 2
Multiply both sides by 2














2. What would your next step be?


Write your answer in the space below.















3. Solve Ravi's equation, 2(x + 14) = 40, to find the width of the rectangle. Show your work.


Write your answer in the space below.















4. Which of these is the most helpful first step for solving Fran's equation, 2x + 28 = 40?

Circle the best answer.

Multiply both sides by 2
Subtract 28 from both sides
Divide both sides by 2
Add 28 to both sides














5. What would your next step be?


Write your answer in the space below.















6. Solve Fran's equation, 2x + 28 = 40, to find the width of the rectangle. Show your work.


Write your answer in the space below.















7. The two equations have different solution steps. Do they have the same solution? Use the distributive property to show why this answer makes sense.


Write your answer in the space below.

Answers

Answer 1

Answer:

number 1 is D

number 2 is distribute 2 into x and 14(multiplying)  getting 2x+28=40

then subtract 28 from each side  40-28=12  after just simply divide 2x by its self and into 12 getting 6

number 3 is 12

number 4 is subtract 2 from both side

number 5 is divide

number 6 is 6

I hope this helps have a great day!

Step-by-step explanation:


Related Questions

Plzzzzzzz helppppppp

Answers

Answer:

a i think

Step-by-step explanation:

Answer:

Y = -5 + 5

Step-by-step explanation:

You can check the y intercept and it's a negative 5 slope

Would like to help me with my math homework?
Math homework is on College for Readiness

Answers

Answer:

Well, I might answer some questions, but maybe not since its collage work ( guessing from the name of it) and i'm only in 6th grade, but I HAVE answered collage questions before on here and got them correct.. (The upcoming and this sentence is pre-written and copy and pasted in every brainly question or comment I write or answer.) If this answer helped you please consider giving it brainliest.

- •Trix•

( Yes I know my - •Trix• thingy is not my user but its what I would change it to if I could but I can't, please address me as Trix while commenting or talking to me here.)

Answer:

Grade?

Step-by-step explanation:

which of these is not a linear graph.​

Answers

Answer:

D

Step-by-step explanation:

It isn't linear

Answer:

D)

Step-by-step explanation:

Linear graphs are straight they can be positive or negative but they do not have bending points in them.

I added a picture to help you

When Daria gets to school, the temperature is 5.7°F. The temperature changes
by -9.5°F by the time she goes to bed. What is the temperature when Daria goes
to bed? Show your work.

Answers

Answer:

-3.8

Step-by-step explanation:

The temperature when Daria goes to bed was -3.8° F.

What is subtraction?

To subtract means to take away from a group or a number of things. When we subtract, the number of things in the group reduces or becomes less.

Given that, When Daria gets to school, the temperature is 5.7 °F. The temperature changes by -9.5 °F by the time she goes to bed.

5.7 - 9.8 = -3.8

Hence, The temperature when Daria goes to bed was -3.8° F.

For more references on subtraction, click;

https://brainly.com/question/2346316

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Find the inverse: f(x) = -3 -4/3 x

Answers

Answer:

3+4/3x

Step-by-step explanation:

Explain why there is no solution to the system of inequalities given below.​

Answers

Answer:

You end up getting the same equation!

Step-by-step explanation:

Cliff's Rentals rents out jet skis. The hourly charge is $50. Marcus rented a jet ski for 3 hours and paid $165.
Which equation can be used to determine the price, P, for h hours? Pls help me

Answers

Answer:

50h + 3 = 165P

Step-by-step explanation:

Nick ivides 527 baseball cards evenly into 17 stacks. How many baseball cards are in each stack?

Answers

Answer:

31

Step-by-step explanation:

527 divided by 17

PLEASEE HELP ITS DUE TODAY

Answers

Answer:

43.44 for the first one

16 cats from the second one

496 for the third one

Step-by-step explanation:

Answer:

a. 43.44

b. 16

c. 496

Step-by-step explanation:

a. (14.48) x 3= 43.44

b. 25% of 64= 16

c. 31 x 16= 496

Help meeeee pleaseee (10 points)

Answers

Answer:

48.7

Step-by-step explanation:

This is a right triangle, so let's use Pythagorean Thearum to solve.

a2+b2=c2 substitute the numbers in. [tex]35^2+b^2=60^2\\[/tex] = 1,225+b^2=3,600

subtract 1225 from 3600. 3600-1225=2375. Now we have to find the square root. [tex]\sqrt 2375[/tex] equals about 48.7

to double-check: 1225 + 2375 = 3600 this equation holds true. so 48.7 is the answer.

CAN SOMEONE PLEASE ANSWER THIS QUESTION ASAP!!

Answers

hi, the solving is in the image, answer is 50 ft

have a nice day :)


Please help geometry

Answers

They are not congruent

MCQ (100)
Q32. If tan(t) =13, then cot(-t) = ?​

Answers

167 haisoake ,?/&9-‘eveiaow be a

In attempting to create a reduced row echelon matrix, DeShawn got the following matri
[ 1 0 0 1 15
0 1 0-7
0 0 0 0
A matrix with an entire row of zeroes indicates the system

Answers

Answer:

is dependent

Step-by-step explanation:

right on edge 2020

Answer:

answer to pt.1 and pt.2 of this question in the photo.

Step-by-step explanation:

3. Sam and Tim each have savings accounts. Every month they each put in some of their
earnings from mowing lawns. Use the tables to find the y-value of the solution to the
system shown.
х
1
2
3
4
f(x)
80
110
140
170
х
1
2
3
4
g(x)
100
120
140
160

Answers

Answer:

[tex]y = 30x +50[/tex] --- Sam

[tex]y = 20x +80[/tex] --- Tim

Step-by-step explanation:

Given

Sam                         Tim

х  --- f(x) ---------------  g(x)

1  --- 80   --------------- 100

2  --- 110  --------------- 120

3  --- 140 --------------- 140

4 --- 170 -------------- 160

Required

Determine the y value

y value implies the equation of the table

Calculating the equation of Sam

First, we need to take any corresponding values of x and y

[tex](x_1,y_1) = (1,80)[/tex]

[tex](x_2,y_2) = (4,170)[/tex]

Next, we calculate the slope (m)

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{170 - 80}{4 - 1}[/tex]

[tex]m = \frac{90}{3}[/tex]

[tex]m = 30[/tex]

Next, we calculate the line equation using:

[tex]y - y_1=m(x-x_1)[/tex]

[tex]y - 80 = 30(x - 1)[/tex]

[tex]y - 80 = 30x - 30[/tex]

Make y the subject

[tex]y = 30x - 30 + 80[/tex]

[tex]y = 30x +50[/tex]

Calculating the equation of Tim

First, we need to take any corresponding values of x and y

[tex](x_1,y_1) = (1,100)[/tex]

[tex](x_2,y_2) = (4,160)[/tex]

Next, we calculate the slope (m)

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{160 - 100}{4 - 1}[/tex]

[tex]m = \frac{60}{3}[/tex]

[tex]m = 20[/tex]

Next, we calculate the line equation using:

[tex]y - y_1=m(x-x_1)[/tex]

[tex]y - 100 = 20(x - 1)[/tex]

[tex]y - 100 = 20x - 20[/tex]

Make y the subject

[tex]y = 20x - 20+100[/tex]

[tex]y = 20x +80[/tex]


Plot each point on the coordinate plane.


Answers

A left 3 time up 5 times.
B right 2 times down 4 times.
C start at the center then go up 3 times.
D just go to the right six times.
E left two times and down 7 times

I hoped that helped.

Jackson rides his bike from his home for 30 minutes at a fast pace. He stops to rest for 20 minutes, and then continues riding in the same direction at a slower pace for 30 more minutes. Sketch a graph of the relationship of Jackson’s distance from home over time.

Answers

Answer:

For the first 30 minutes, we will have a line with a given steepness, this will represent the 30 minutes riding at a fast pace.

Then he stops for 20 minutes, we will represent this with a constant line.

Then he again moves for another 30 minutes, but with a slower pace than in the first 30 minutes, then this line will be less steep than the first line.

A sketch of this situation can be seen below.

The table shows of a ratio used to make of orange paint use a table how many quarts of yellow paint would be required to make the shade of orange if you use 9 quarts of red paint

Answers

Answer:

[tex]Y = 7\frac{1}{2}[/tex]

Step-by-step explanation:

Missing Table:

Yellow Paint ----------- Red Paint

5 ---------------------------------6

Required

Determine the quarts of yellow paints when 9 quarts of red are used

Represent Yellow with Y and Red with R.

When Y = 5 and R = 6, we have the following:

[tex]Y : R = 5 : 6[/tex]

Represent as a fraction

[tex]\frac{Y}{R} = \frac{5}{6}[/tex]

When R = 9 and Y is unknown, we have the following:

and

[tex]Y : R = Y : 9[/tex]

Represent as a fraction

[tex]\frac{Y}{R} = \frac{Y}{9}[/tex]

Since the given parameters re[resent a direct variation between both paints, we can equate both fractions to solve for Y

[tex]\frac{5}{6} = \frac{Y}{9}[/tex]

Multiply through by 9

[tex]9 * \frac{5}{6} = \frac{Y}{9} * 9[/tex]

[tex]9 * \frac{5}{6} = Y[/tex]

[tex]3 * \frac{5}{2} = Y[/tex]

[tex]\frac{15}{2} = Y[/tex]

[tex]7\frac{1}{2} = Y[/tex]

[tex]Y = 7\frac{1}{2}[/tex]

Hence, [tex]7\frac{1}{2}[/tex] quarts of the yellow paints is required


3x + 2
38
12/
12
30
12x-7

Answers

Answer:

djjfjhcuj7u

Step-by-step explanation:

5ug77hhig jk uyhvhbbijvcujgguihgguhgj

There are 36 boys and 12 girls at the Zephyrs baseball game practice. What is
the ratio of boys to girls?
a 4:1
C. 1.4
b. 3:1
d. 1:3

Answers

Answer:

Step-by-step explanation:

the ration of boys to girls will be:

36/12=3/1

choice b

another way

36 boys.........................12 girls  divide by 6

6 boys.............................2 girls   divide by 2

3 boys.............................1 girl

A salesperson at a jewelry store earns 3% commission each week. Last week, Heidi sold $750
worth of jewelry. How much did she make in commission? How much did the jewelry store make
from her sales?
Heidi earned $ in commission.

Answers

She made $22.5 of commission

a owner increases the rent office house by 5% at end of each year if current its rent is ₹2500pm how much will be the rent after two years​

Answers

Step-by-step explanation:

2500×5%=125

125×2=250

2500+250=2750$

Answer:

2756.25 This is what he will pay going into the third year.

Step-by-step explanation:

This is not as simple as it looks. Is the base number always 2500 no matter how many years go by?

Or do you compound the rent after each Year.

Simple Interest

Rent after the first year

Rent after first year = 2500 + 5%*2500

Rent after first year = 2500 + 125

Rent after first year = 2625

The rent after the second year will be the same.

Compound interest.

Rent after first year is 2625

At the end of the second year it will be 2625 + 2625*5%

Second year payment = 2625 + 2625*5/100

Second year payment = 2625 + 131.25

Second year payment = 2756.25

What is - 9 + 3 = I know its -6 but how

Answers

Answer:

You count something

Step-by-step explanation:

If you imagine 9 slots that are empty and you fill 3 of them then there is 6 empty slots so -6

ASAP please help me I need this quick
The question and answers are in the picture

Answers

12 is the answer

Equilateral triangle means the three sides are the same length. You do 3 x 4 = 12

Answer:

4 + 4 + 4 = 12

Step-by-step explanation:

Perimeter (P) = a + b + c (a, b, c being all the sides, which are all equal to 4)

~ 100 Points! ~

What is the length of the midsegment of this trapezoid? Enter your answer in the box. units Trapezoid A B C D on the coordinate plane. The vertices of the trapezoid are A begin ordered pair negative 2 comma 4 end ordered pair, B begin ordered pair 4 comma 3 end ordered pair, C begin ordered pair 4 comma negative 5 end ordered pair, and D begin ordered pair negative 2 comma negative 2 end ordered pair.

Answers

Answer:

Midsegment=1.7

Step-by-step explanation:

Distance formula

d = √(x2 - x1)^2 + (y2-y1)^2}

d=√(4-(-2)^2+(3-4)^2

simplify and solve

we find d=1

Now side lenght

d=√((-2-(-2))^2+(4-(-2))

d=2.44949

length of midsegment=1/2 x (2.44949+1)

1.724745

simplifies to

1.7

Answer:

Midsegment is 1.7

Step-by-step explanation:

Suppose that 45% of all babies in a particluar hospital are boys. If 8 babies born in the hospital are randomly selected, what is the probability that fewer than 3 of them are boys?

Answers

Answer:

3

Step-by-step explanation:

Find the measures of the exterior angle.

Answers

Answer:126

Step-by-step explanation:

I appreciate the help and if you don’t mind can someone please help me with this one too

Answers

Answer:

he must work 8 hours

Step-by-step explanation:

soln:

given,

$8=1 hour

or,$1=1/8 hour

so,

$64=64*1/8 hour

•°•$64=8 hours

Dante wants to read a 425-page book in 3 days. He reads 178 pages on Monday and 146 pages on Tuesday. He wants to determine how many pages, p, he will have to read on Wednesday.

Answers

101 pages on Wednesday



Explanation:

425=178+146+p

Then you solve by adding the 178 and 146
425=324+p
Then subtract 324 from both sides
101=p

Answer:

101 pages

Step-by-step explanation:

first, you need to add the number of pages read on monday and the number of pages read on tuesday, and get 324. then, you subtract the number of pages read from the amount of pages there are, and get 101.

which matrix represents the system of equations shown below ? 4x-2y=5 5x- y=8

Answers

4 -2   5

5 -1    8

this is what it showed in brackets as the correct answer.

The matrix that represents the system of equations 4x-2y=5 and 5x- y=8  is [tex]\left[\begin{array}{cc}4&-2\\5&1\end{array}\right] \left[\begin{array}{c}5&8\end{array}\right][/tex]

How to determine the matrix?

The system of equations is given as:

4x-2y=5

5x- y=8

Remove the variables

x     y  

4    -2    5

5    -1    8

Represent as a matrix

[tex]\left[\begin{array}{cc}4&-2\\5&1\end{array}\right] \left[\begin{array}{c}5&8\end{array}\right][/tex]

Read more about matrix at:

https://brainly.com/question/1821869

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