MATHEMATICS MIDDLE SCHOOL

1.) Simplify. 4x + 5y + 9x – 3y

Answers

Answer 1
Answer: 13x+2y .............................................................................
Answer 2
Answer: 4x+5y+9x-3y
4x+9x+5y-3y
13x+2y
This is your answer.

Hope that help.

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There are (3^2)4 ⋅ 3^0bacteria in a petri dish. What is the total number of bacteria in the dish?

Answers

Answer 36

Do the parentheses first (3^2)=9

(9)4•1

The 1 is because 3^0 is just 1

9•4 is 36 and 36•1 is 36.

There are 3 cans that store 9 tennis balls. Consider the number of balls per can a.find the constant of proportionality for this situationb.Write an equation to represent the relationship

Answers

Answer:

Write an equation that will model the proportional relationship given in each real world situation.

1. There are 3 cans that store 9 tennis balls. Consider the number of balls per can.

a. Find the constant of proportionality for this situation.

9 balls (B)

_________ = 3

3 cans (C)

b. Write an equation to represent the relationship.

b = 3c

Find the exact length of the third side.

Answers

Answer:

what side though please give us more info

What is the exact volume of a cylinder that has a height of 1.8 ft and a radius of 6.1 ft?_____π ft³

Answers

cylinder area=height times area of base (area of base=area of circle)

height =1.8
radius=6.1
area of circle=pi times r^2


area of circle=pi times 6.1^2=37.21π
times height

1.8 times 37.21π=66.978π

volume=66.978π ft^3

What's the square root of 52

Answers

The square root of 52 is 7.211
The answer is 7.21110255093.

a bag contained 3/4 pound of marbles. each marble weighed 1/36. After Ashley removed some marbles from the bag, it weighed 1/3 pound. How many marbles did Ashley remove?

Answers

she removed 12 marbles because 3×12=36 and you can do commutative property and do 12×3= what? 36!
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