Question

Show an equation and a solution for the problem. At noon, a train leaves Bridgetown heading east at 90 mph to Cartertown. Another train leaves Bridgetown at 1:00 p.m., also heading east at 100 mph. In how many hours after the second train left will they pass each other? Show an equation and a solution for the problem. At noon, a train leaves Bridgetown heading east at 90 mph to Cartertown. Another train leaves Bridgetown at 1:00 p.m., also heading east at 100 mph. In how many hours after the second train left will they pass each other? @Mathematics

Answer 1

r t = d
Let t be the time it takes for the 100 mph train to catch the other train. At t=0 the 100 mph train begins to leave Bridgetown and the 90 mph train is 90 miles out from Bridgetown.

Solve the following for t:

100 t = 90 t + 90
t = 9 hours