Question

A machine makes 280 children's toys in 20 minutes. What expression equals the

unit rate per hour? (You must show work or explain your answer.)
a) 280/20
b) 20/280

`280 / (1)/(3)`




d) 14
​

Answer 1

`\text{c)}\ 280/(1)/(3)`

Explanation:

The question asks for the rate in toys per hour, so to find the rate, you divide the number of toys by the number of hours:

unit rate = (280 toys)/(1/3 hour) = 280/(1/3) toys/hour