Question 204078
Steve traveled 150 miles at a certain speed.
 Had he gone 20 mph faster, the trip would have taken 2 hours less.
 Find the speed of his vehicle.
:
Let s = the speed of the car
then
(x+20) = the faster speed
:
Write a time equation: Time {{{dist/speed}}}
:
{{{150/s}}} = {{{150/((s+20))}}} + 2
:
Multiply this equation by s(s+20) and solve for s, and you have it