SOLUTION: in a race, car A starts 1 mile behind car B. car A is traveling at 65 miles per hour, while car b is traveling at 55 miles per hour. how long will it take for car A to overtake ca
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Question 1005078: in a race, car A starts 1 mile behind car B. car A is traveling at 65 miles per hour, while car b is traveling at 55 miles per hour. how long will it take for car A to overtake car b? Answer by josgarithmetic(39616) (Show Source):
You can put this solution on YOUR website! From the starting time reference point, car A must go d+1 miles while car B must just go d miles; time t is the same for both cars.
rate time distance
carA 65 t d+1
carB 55 t d
RT=D uniform travel rates rule.
The work should be clear to find.
...that is, , to solve this system. Make the obvious substitution:
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