Question

Can you help me please?

1. There are 3 tennis balls in each can. The coach bought a total of 27 tennis balls. Write and solve a multiplication equation to find how many cans the coach bought?
2. After dropping 5ºF, the temperature was 37ºF. Write a subtraction equation to show what the starting temperature was?
3. Troy sprinted down the hallway for a science project. He ran a total of 40 meters in 20 seconds. What was his average speed?

Answer 1

1.) 9x3=27
2.) 42-5=37
3.) 2/m per second
Hope this helps!

Answer 2

Explanation:

1) let n be number of cans

if 1 can has 3 tennis balls, then

n cans will have 3n (n*3) tennis balls.

thus, 3n= 27 (equation)

n=27/3

n=9

2) let the initial temp. be y

y - 5° F = 37 ° F

3) average speed= total distance/ total time

= 40 m / 20 s

= 2 m/s

let me know if there's something you didn't understand, thank you!

-s.