Mathematics Middle School

## Answers

**Answer 1**

**Answer: x=3 and y=−2**

**Step-by-step explanation:**

**x=−2y−1;4x−4y=20**

**Step: Solve x=−2y−1 for x:**

**Step: Substitute−2y−1 for x in 4x−4y=20:**

**4x−4y=20**

**4(−2y−1)−4y=20**

**−12y−4=20(Simplify both sides of the equation)**

**−12y−4+4=20+4(Add 4 to both sides)**

**−12y=24**

**−12y**

**−12**

**=**

**24**

**−12**

**(Divide both sides by -12)**

**y=−2**

**Step: Substitute−2 for y x=−2y−1:**

**x=−2y−1**

**x=(−2)(−2)−1**

**x=3(Simplify both sides of the equation)**

## Related Questions

Please help with a khan academyyy

### Answers

Letter A because when yu solve the equation it’s -6q-6-4q which when yu add like terms equal -2q-6 and it’s equivalent to -6+4q+(-6q) because they both equal the same thing

PLS HELP!! Let's say you are borrowing $5000 from the bank to purchase a donkey named Don. The annual (one year) interest rate for the donkey is 4.4%. How much will you be paying in interest for Don?

### Answers

**Answer:**

220?

**Step-by-step explanation:**

220 is the answer i believe!!

45% of ____ is 396

what is the blank?

### Answers

Answer: 880. Divide .45 from 396 to get 880.

**Answer:**

**178.2**

**Explanation:**

**45 x 396**

17820/100

178.2

A survey asked 200 Grade 4 students about their reading preferences. Based on the Graph, how many of them would you expect to prefer comic books?

A. 10

B. 20

C. 60

D. 80

E. 100

### Answers

C was the correct answer, hope this is help for y’all ;3

Based on the **Graph**, **10 **would you expect to prefer comic books. So, the correct option is **A**.

What is Graph?

A **graph **is a framework made up of a number of things, some of which are paired together to form **"related" objects**. The items are represented by mathematical abstractions known as vertices, and each pair of connected vertices is referred to as an **edge**.

The link between** arcs and points** is described by a graph, which is a mathematical description of a network. A **graph **is made up of certain locations and the connecting lines. It doesn't matter how long the lines are or where the points are located. A **node **is the name for each element in a graph. Based on the given **Graph**, **10 **would you expect to prefer comic books.

Therefore, the correct option is **A**.

Learn more about **Graph**, here:

https://brainly.com/question/17267403

#SPJ3

(ZOOM IN TO SEE THE QUESTION) I need help!!!

### Answers

**Answer:**

359 is your answer

**Step-by-step explanation:**

Have a good day ;-)

**Answer:**

359

**Step-by-step explanation:**

CAN SOME ONE ANSWER MY QUESTION I NEED HELP

you have a shelf that holds 15 1/2 pounds how many 1 1/4 pound books can the shelf hold

### Answers

**Answer: 12**

**Step-by-step explanation:**

15 1/2=31/2

1 1/4- 5/4

31/2÷5/4=31/2×4/5

31/2×4/5=124/10

124/10=12.4

Because books cannot come as parts, we round this down to 12.

What the person above said

Select the choice that represents: A number increased by 36 equals 52. *

A n + 36

B n + 36 = 52

C n - 36 =52

D 36 -n=52

### Answers

B and unfortunately I have no idea how to explain it

please help i need help really bad

### Answers

the answer is 108 degrees

A map has scale of 1.5 inches =9 miles. On the map, two towns are 4 inches apart. What distance, in miles, between the two town?

### Answers

**Answer:**

the answer is 24 miles.

**Step-by-step explanation:**

Penis penis penis 24 miles lol

whats the answer to this question

### Answers

**Answer:**

B

**Step-by-step explanation:**

The thing you have to do is just read the graph

**Answer:**

B. (6,6)

I did it before

Nine years ago, Tarah opened a savings account with her bank. She started with a balance of $359 and has not made any withdrawals or deposits since then. If her interest rate is 8% each year, how much interest has accrued using simple interest?

Total Interest = $__________

What is Tarah's new total balance?

New Balance Total = $__________

### Answers

**Answer:**

$258.48

**Step-by-step explanation:**

Initial balance in the savings account = $359

Interest rate = 8%

you already have your answer, but i hope you’re having a great day!! :)

At the store, you buy x computer games for $13 each and a magazine for $4. Write an expression in simplest form that represents the total amount of money you spend.

asap i will give brianlist

### Answers

**Answer:**

**13g + 4m = D**

**explain:**

**g=number of computer games**

**m=number of magazines**

**D=$ spent**

** hope this work**

** If I'm wrong I'm so sorry **

**If I'm right Thank you (Brainliest plz)**

If the lowest temperature in Whitesboro for the week was -1°F and the highest temperature was 20°F, what was the total change in temperature?

Will give brainliest!!

### Answers

Answer: The total change is 21.

Since you want to find the change from the lowest to highest, make it into a subtraction problem. First of all, take the smallest number in front of the largest.

20 -1

Next, add a minus sign in between, your equation should look like this:

20 - (-1) = x

Then, you cancel out the negative signs. After that you solve it

20 - (-1) -> 20 + 1.

Lastly, you add them together.

20 + 1 = 21.

In conclusion, the answer is 21.

**Answer:**

21°F

**Step-by-step explanation:**

It went from -1 to 20

[-1]= 1

1+20

21

it went up or down 21°F

A A

(๑٥〰️٥๑)️

ϞϞノ -- -- 乀 •⃠

Monica got a $4,500 car loan, to be paid in 3 years. The interest rate is 5%. What will the interest rate is 5%. What will the interest be at the end of 3 years? What is the total she will need to pay back?

### Answers

**Answer:**

4,775.44

**Step-by-step explanation:**

I don’t know look it up sorry

HELPPPPPPPPPPPP PLZZZ

### Answers

**I'm sorry I can't see it, it is blocked.**

**Answer: yes and then no**

**Step-by-step explanation:**

An angle measuring 113° is rotated 180 degrees clockwise. What is the measure of the angle after the rotation?

### Answers

**Answer: 293 degrees**

**Step-by-step explanation:**

113+180=293 degrees

**Answer:**

293 i took the test its correct

**Step-by-step explanation:**

can someone help me with this problem y≤ 1±10

### Answers

This is y is less than or equal to 11.

Because 1+10 equals 11 and that symbol is the less than or equal to symbol. So we know, y has to be less than or equal to 11! Hope this helps!

The graph shows the distance, y, that a car traveled in x hours: A graph is shown with x axis title as Time in hours. The title on the y axis is Distance Traveled in miles. The values on the x axis are from 0 to 5 in increments of 1 for each grid line. The values on the y axis are from 0 to 125 in increments of 25 for each grid line. A line is shown connecting ordered pairs 1, 25 and 2, 50 and 3, 75 and 4, 100. The title of the graph is Rate of Travel. What is the rate of change for the relationship represented in the graph? fraction 1 over 50 fraction 1 over 25 25 50

### Answers

**Answer:**

I would say the answer would be y=25x

**Step-by-step explanation:**

Y=35x as in you increase 35 every time you go up on the graph

**Answer:**

c

**Step-by-step explanation:**

25

Which transformation did Benjamin use to create the pattern?

rotations

translations

reflections and rotations

reflections and translations

### Answers

B.translation should be your answer (:

It’s. B. Translations

To pay for a concert ticket, Geoff needs to earn $135 in commission. What must Geoff’s sales total for the week?

### Answers

10% commission on his total sales at work

Emmy read a total of 28 books over 4 months. After belonging to the book club for 7 months, how many books will Emmy have read in all? Assume the relationship is directly proportional.

### Answers

28 divided by 4=7 so you can figure out how many books she reads each month.Then multiply 7 by 7 because she reads for 7 months and you get 49 books read

A park charges $7.50 per hour to rent a bike. The table shows the relationship between the number of hours, h, and the total cost, c. With the information in the table, which expression can be used to find c?

A. [tex]\frac{7.50}{}[/tex]

B. + 13

C. - 15

D. 7.50

### Answers

**Answer:**

C=7.5h

divide both sides by 7.5

c/7.5=h

h=c/7.5

**Step-by-step explanation:**

**Answer:**

**Step-by-step explanation:**

C=7.5 hours

Break all sides of 7.5

c/7.60=h

H = 7.5 h

Which of the following equations shows a proportional function? A y = x + 3 B y = 2x − 1 C y = x − 2 D y = 4x

### Answers

**Answer:**

A or B

**Step-by-step explanation:**

A function is output = constant •/+/-/÷ input. In any function, the amount of one quantity is dependent on the amount of another.

QUESTION IS IN PICTURE PLEASE HELP ASAP DONT SKIP

### Answers

**Answer:**

*y=4.5x+22 (4.5 goes in first box, 22 goes in second box).*

**Step-by-step explanation:**

For starters, you can use that line in the middle, a.k.a. **the line of best fit,** to help set up your equation.

The equation is **in slope-intercept (y=mx+b) form,** where m is slope and b is y-intercept.

From the given numbers and the graph, **it looks like the y-intercept is about 22** so you can drag the 22 in the last box, where the 'b' should be. your equation is now y=mx+22.

**For the slope, just calculate rise over run.** I've counted and gotten about 9/2, which equals 4.5 (which is in the choices), which is your slope.

**Your final equation is now y=4.5x+22.** Hope this helps.

5 ÷ 3/10

Please give me an answer and a answer in fraction form

If you can i need an explanation also.

Thank you

### Answers

1 5/8 just use a calculator

Carpet costs $21.95 per square yard and the padding to put under it costs $2.55 per square yard. Felix plans to install padding and carpet in the region shown in the figure. What is the total cost of the carpet and padding needed to exactly cover the room?

### Answers

**Answer:**

$1679.175 or $1679.18

**Step-by-step explanation:**

split the carpet into rectangles to make it easier to look at

one rectangle is 2 yards in height and 9 yards in width (5 yards plus 4 yards)

area of a rectangle = (w)(h), so 9 x 2 = 18 yards in area.

second triangle is 4 yards in width, and 3 yards in height.

area of a rectangle = (w)(h), so 4 x 3 = 12 yards in area.

Total area = 30 yards

30(21.95)(2.55) = $1679.175 or $1679.18

**Answer: $735 **

**Step-by-step explanation: Hi hawang0604, i still have more questions i need help with.**

if each dimension of a unit cube is increased by 1. what is the ratio between the surface area of the new cube to that of the original

### Answers

**Answer:**

4:1 or 4/1

**Step-by-step explanation:**

Original surface area: Each side is 1 * 1 = 1 and there are 6 sides, so 1 * 6 = 6.

New surface area: Each side is 2*2 = 4, and there are 6 sides, so 4 * 6 = 24

The ratio would be 24:6, or 4:1. As a fraction, this would be 4/1

4/1 ^ yea he’s right I remember this

Help me with this- ILL GIVE BRANILEST

### Answers

1) 12 ounces of water to one packet of flavoring

2) 5 = 60, 7 = 84, 10 = 120, 12 = 144

4) 23 x 12 = 276 ounces of water

1) 12 ounces of water to one packet of flavouring

2) 5 = 607 = 84, 10 = 120, 12 =144 4) 23*12=276 ounces of water

here, take some dino nuggies.

### Answers

Thanks bro I really needed that

**Answer:**

Did yall eat them all yet?

**Step-by-step explanation:**

You decide to open a small business in the Bronx. You borrow $15,000 from the bank at an annual interest rate of 7% for 24 months. What is the amount of interest you will pay on this loan?

### Answers

**Answer:**

$2,100 interest

**Step-by-step explanation:**

15,000×7% = 1,050

1,050×2 = 2,100

**Answer:**

15000x2x7/100 = 210

**Step-by-step explanation:**