SOLUTION: I am having trouble creating an equation to solve this problem:
two cars start at the same locations and travel in the same direction at average speeds of 30 miles per hour and 45
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two cars start at the same locations and travel in the same direction at average speeds of 30 miles per hour and 45
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Question 651603: I am having trouble creating an equation to solve this problem:
two cars start at the same locations and travel in the same direction at average speeds of 30 miles per hour and 45 miles per hour. How much time must elapse before the two cars are five miles apart? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! two cars start at the same locations and travel in the same direction at average speeds of 30 miles per hour and 45 miles per hour. How much time must elapse before the two cars are five miles apart?
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Slower car DATA:
rate = 30 mph ; time = x hrs ; distance = 30x miles
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Faster car DATA:
rate = 45 mph ; time = x hrs ; distance = 45x miles
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Equation:
fast distance - slow distance = 5 miles
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45x - 30x = 5 miles
15x = 5 miles
x = 1/3 hour = 20 minutes
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Cheers,
Stan H.
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