SOLUTION: A cyclist traveled at arate of 32mph to visit a nearby town. The cyclist averaged 10 mph on hte return trip. If the round trip took 6.3 hours, find the distance to the nearby town.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: A cyclist traveled at arate of 32mph to visit a nearby town. The cyclist averaged 10 mph on hte return trip. If the round trip took 6.3 hours, find the distance to the nearby town.      Log On


   



Question 191893: A cyclist traveled at arate of 32mph to visit a nearby town. The cyclist averaged 10 mph on hte return trip. If the round trip took 6.3 hours, find the distance to the nearby town.
Answer by tvandenberg(45) About Me  (Show Source):
You can put this solution on YOUR website!
The trip is "x" miles each way.
Since time = distance / speed,
x / 32 + x / 10 = 6.3
Let's do this without a calculator. Chose a common denominator, 160.
5x / 160 + 16x / 160 = 6.3
21x / 160 = 6.3
21x / 16 = 63
x = 63 * 16 / 21 = 3 * 16 = 48
The town is 48 miles away.