Question

10.

9. Billie bikes 9 miles in 45 minutes. At this
rate, can she bike 24 miles in 2 hours?
Write an argument that can be used to
justify your solution.

Answer 1

yes

Explanation:

We can use the fact that the rate is a constant to find the time t it would take Billie to bike 24 miles.

time/distance = (3/4 h)/(9 mi) = t/(24 mi)

Multiplying by 24 mi, we have ...

t = (3/4 h)(24/9) = 2 h

At the same rate, Billie can bike 24 miles in 2 hours.