Question

Rachel is running the Challenge of Champions obstacle race at her summer camp. She runs 7/8 of a mile, but then she twists her ankle while going up the Mounds of Doom. Rachel still has 5/8 of a mile left to run, so she drops out of the race. Which equation can you use to find the total distance d of the race?

Answer 1

Answer:

Step-by-step explanation:

Given:

Distance ran before the injury, Di = 7/8 mile

Distance left after the injury, Do = 5/8 mile

Total distance of the race, Dt = distance ran before the injury, Di + distance left after the injury, Do

Dt = Di + Do

= 7/8 + 5/8

= 12/8 mile.