SOLUTION: Two vehicles leave the same corner at the same time and travel at a right angle to each other. One vehicle travels 3 km an hour faster than the other. If after one hour the vehicl

Algebra ->  Test -> SOLUTION: Two vehicles leave the same corner at the same time and travel at a right angle to each other. One vehicle travels 3 km an hour faster than the other. If after one hour the vehicl      Log On


   

Question 745344: Two vehicles leave the same corner at the same time and travel at a right angle to each other. One vehicle travels 3 km an hour faster than the other. If after one hour the vehicles are 15 km apart, find the rate of each vehicle.
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2B%28x%2B3%29%5E2=15%5E2
x%5E2%2Bx%5E2%2B6x%2B9=225
2x%5E2%2B6x-216
divide by 2...
x%5E2%2B3x-108
%28x-9%29%28x%2B12%29=0

so the slower is 9 km an hour
and the faster is 12 km per hour