Question

DeAngelo is training for a half marathon. Today he is running 13.25 miles. He jogs for the first half hour at a rate of 5.5 miles per hour, then increases his pace to p miles per hour for 1.5 hours. Write an equation representing this situation, and complete the statement that follows.

Answer 1

Total distance ran = 13.25 miles


First half hour, speed = 5.5 miles/hr


Distance = 5.5x0.5 = 2.75 miles

Remaining distance = 13.25 – 2.75 = 10.5 miles


Speed = p miles per hour


Time taken = 10.5/p


Time taken = 1.5 hours


10.5/p = 1.5

P = 10.5/1.5

    = 7 miles per hour

Answer 2

Answer:

Step-by-step explanation:

Total distance ran = 13.25 miles

First half hour, speed = 5.5 miles/hr

Distance = 5.5x0.5 = 2.75 miles

Remaining distance = 13.25 – 2.75 = 10.5 miles

Speed = p miles per hour

Time taken = 10.5/p

Time taken = 1.5 hours

10.5/p = 1.5

P = 10.5/1.5

= 7 miles per hour