Question

Two cars are traveling in the same direction. the first car is going 40 mph and the second car is going 55 mph. the first car left 3 hours before the second car. which equation could i use to solve to find how many hours it will take for the second car to catch up to the first car?

Answer 1

I hope this helps you




distance=speed×time



first cars time t




second cars time t+3



same distance


distance=55.t


distance=40. (t+3)



55t=40 (t+3)



55t-40t=120


15t=120


t=8


t+3=11