SOLUTION: A car leaves town and drives south east at 30 miles per hour. A second car leaves the same point at the same time and drives north east. After four hours they are 200 miles apart.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: A car leaves town and drives south east at 30 miles per hour. A second car leaves the same point at the same time and drives north east. After four hours they are 200 miles apart.       Log On


   

Question 290543: A car leaves town and drives south east at 30 miles per hour. A second car leaves the same point at the same time and drives north east. After four hours they are 200 miles apart. How fast was the second car driving?
Found 2 solutions by richwmiller, Edwin McCravy:
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(4*30)^2+(4*x)^2=200^2
solve for x
x=40

Answer by Edwin McCravy(20054) About Me  (Show Source):