A car travels 45 mph and another car travels at 52 mph.?
They start at the same time from the same location and travel in the same direction. How long will it take for the faster car to travel 42 miles farther than the slower car?
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Distance equals speed time time.
The cars will have traveled the same amount of time when the faster one is 45 miles further from the common starting point, which they left at the same moment.
D1=52t
D2=45t
D1-D2=42
52t-45t=42
7t=42
t=6
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6 hours. 52-45=7. 42/7=6. 6hours. =]
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It will take the faster car about an 1hour and 7min. longer than the slower car.
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Not much of a contest .
They both sound like ” used cars ” !
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