Answer:
18.7 miles
Explanation:
You want to know how far Kendall can ride her bike in 2 hours if she rides at the speed of 7 miles in 45 minutes.
Proportion
The question assumes that distance is proportional to time, so the distance (d) of interest can be written in the proportion ...
miles/minutes = 7/45 = d/120 . . . . . . 120 minutes is 2 hours
Multiplying by 120, we have ...
d = 120(7/45) = 7(8/3) = 18 2/3 ≈ 18.7
Kendall can ride about 18.7 miles in 2 hours.