Question

Jasmine ran 5 miles in 42 mintues. Part AAt what rate did Jasmine run? Part B Katie ran 4 miles. She ran at a rate that was 1.1 mintues per mile slower than Jasmine. For how many mintues did Katie run? Explain how you determined your answer.

Answer 1

Part A) 8.4 minutes per mile B) Katie ran for 29.6,(approximately 30 minutes).

Part A)

Given that Jasmine ran 5miles in 42 min we can write the proportion below, to find her unit rate:

miles minutes

5 42

1 x

Cross multiplying it:

5x = 42

x=42/5

x=8.4 minutes per mile

Part B)

Katie: 4 miles

Katie ran 7.4 minutes per mile then.

We can find that out, how many minutes Katie ran by setting another proportion:

miles minutes

4 y

1 7.4

y= 7.4 x 4

y =29.6

So, Katie ran for approximately 30 minutes