Turn into an equation and solve:

Question

A and B are traveling in the same direction. A is traveling at 45mph and is 40 miles ahead of B who is traveling at 55mph. How many hours will it take B to catch up to A?

Answer 1

d = r · t

 

A: d = 45t

B: d + 40 = 55t, or d = 55t - 40

 

45t = 55t - 40

 

Can you solve for t?