Solve.
-Natasha rides her bike (at a constant speed) for 4 hours, helped by a wind of 2 miles per hour. Pedaling at the same rate, the trip back against the wind takes 8 hours. Find find the total round trip distance she traveled.
A) 12 miles
B) 64 miles
C) 32 miles
D) 16 miles

Question

Quizplus · Accepted Answer

The wind-assisted speed is (r + 2) mph, and the return speed is (r - 2) mph. The distance one way is 4(r + 2) = 8(r - 2). Solving gives r = 6 mph. The one-way distance is 4(6 + 2) = 32 miles, so the round trip is 64 miles.

Solve. -Natasha Rides Her Bike (At a Constant Speed) for 4