Question 1033155: Students are traveling in two cars to a football game 160 miles away. The first car leaves on time and travels at an average speed of 35 miles per hour. The second car starts 1/2 hour later and travels at an average speed of 45 miles per hour. How long will it take the second car to catch up to the first car?
Answer by josgarithmetic(39615)   (Show Source):
You can put this solution on YOUR website! See how the description fits this table of data and variable assignments.
WHICH RATE TIME DISTANCE
SLOW EARLY 35 t+1/2 d
FAST LATE 45 t d
You must understand that d is NOT equal to 160, or if it is, you must not assume it to be. This problem description will give ONE equation in only ONE unknown variable, t. You may begin with a system of two equations, but you should derive one single equation from it.
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