Question

Jeannine runs for 45 minutes every day for exercise. It takes her 8 minutes to run a mile, and she spends 5 minutes stretching halfway through the run. If x represents the number of miles she runs, then 8x + 5 ≤ 45 represents the time she runs each day. What is the fewest number of miles Jeannine must run to complete her daily exercise?

Answer 1

8x5<45 -5 -5 ------ 8x<40 ------- 8 8 x<5 So the fewest of miles she could run is 1, 2, 3, or 4 miles