MATHEMATICS MIDDLE SCHOOL

3x-5y= 17; Solve for y​

Answers

Answer 1
Answer:

Answer:

y=−17/5+3x/5

Step-by-step explanation:

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Cherries cost $5 for two pounds and $7.50 for 3 pounds. a. What is the cost per pound? b. Is it constant? c. If you were to graph this situation, would you put weight or cost on the x-axis? Which one would you put on the y-axis? d. Plot the two points described e. How much would 5 pounds of cherries cost? What did you do to solve this problem?

Answers

It is Constant. The cost per pound is 2.50 dollars. two would be on the x-axis, and 5 dollars would be on the y-axis. likewise, 3 would be on the x-axis, and 7.50 dollars is on the y-axis. 5 pounds would cost : $12.50
I'm stuck on the graphing part it's confusing.

Put -4, 6.2,18 1/2, -5.9,21, -1/4 and 1.75 in greatest to least order

Answers

okay lets do this

first we write these numbers on a peice of paper.

the answer is

21, 18 1/2, 6.2, 1.75, -1/4, -4, -5.9

if you need more help just tell me
21, 18 1/2, 6.2, 1.75, -1/4, -4, -5.9

Ida paid 75¢ for two iteams and got 19¢ in change. What iteams did she buy

Answers

You could buy the Magnet and the Postcard and get 19 cents!
She brought the magnets i think

Multiply.Express your answer in lowest terms.Multiply.



Express your answer in lowest terms.


-5/6 * (-3/10)=

Answers

- (5)/(6) \cdot - (3)/(10) = (15)/(60) = (5* 3* 1)/(5* 3 * 4)= \boxed{\bf{(1)/(4) }}

A circle with area 100 pie has a sector with a central angle of 2/5pi radius

Answers

The area of the sector is 20π.

Step-by-step explanation:

  • The area of the circle = 100π
  • The formula for area of the circle = πr²
  • The central angle of the sector = (2/5)π radians

The central angle should be converted from radians to degrees.

To convert radian to degree :

1 rad × 180/π gives the degree value.

Therefore, (2/5)π × 180/π = (2/5) × 180

The π gets cancelled out.

⇒ 2× 36

⇒ 72°

To find the area of the sector :

The formula to calculate area of the sector = (central angle/360) × πr²

⇒ (72/360) × 100π

⇒ (1/5) × 100π

⇒ 20π

The area of the sector is 20π.

One third of a number t is equal to 7

Answers

Answer:

The value of t is 21

Step-by-step explanation:

Given :One third of a number t is equal to 7

To Find : Find the value of t

Solution :

Number = t

One third of a number = (t)/(3)

Now we are given that One third of a number t is equal to 7

So, (t)/(3)=7

t=7 * 3

t=21

Hence the number is 21
if one third of t is 7 than t is equal to 21
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