Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2 h, and Car B traveled the distance in 1.5 h. Car B traveled 15 mph faster than Car A.

How fast did Car B travel?

Question

Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2 h, and Car B traveled the distance in 1.5 h. Car B traveled 15 mph faster than Car A.
 
How fast did Car B travel?

anonymous · Answer

An important formula to remember when doing questions like this is
$$ rate \times time = distance$$

For car A you have:
(rate of car A) x (2 hours) = distance

Can you set up a similar equation for car B?

anonymous · Answer

@bazel_e

anonymous · Answer

no because i don't know the speed of  car a

anonymous · Answer

So let the speed of car A be the variable S. How would you write the equation of Car B now?

anonymous · Answer

@onemillion6 1.5 hours(S+15)?