SOLUTION: the formula r=2√(5L) can be used to approximate the speed r, in miles per hour,of a car that has left skid marks of length L, in feet. How far will a car skid at 60mph?

Algebra ->  Radicals -> SOLUTION: the formula r=2√(5L) can be used to approximate the speed r, in miles per hour,of a car that has left skid marks of length L, in feet. How far will a car skid at 60mph?      Log On


   

Question 479246: the formula r=2√(5L) can be used to approximate the speed r, in miles per hour,of a car that has left skid marks of length L, in feet. How far will a car skid at 60mph?
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
r+=+2sqrt%285L%29
plug in what was given:
60+=+2sqrt%285L%29
30+=+sqrt%285L%29
900+=+5L
180+=+L (feet)