Question 845349: Betty leaves her purse in a store at the mall and averages 36mi/h on her way home to Glenville, 140 miles away. Honest Harry discovers her purse and starts after her one hour later. If he averages 48mi/h, how long will it take him to catch Betty ? Will he catch her before she reaches Glenville ?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Betty leaves her purse in a store at the mall and averages 36mi/h on her way home to Glenville, 140 miles away.
Betty distance: 36x miles
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Honest Harry discovers her purse and starts after her one hour later. If he averages 48mi/h, how long will it take him to catch Betty ?
Harry distance: 48(x-1) miles
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Equation:
distance = distance
36x = 48x-48
12x = 48
x = 4 hours (time needed for Harry to go the same distance as Betty)
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Will he catch her before she reaches Glenville ?
In 4 hours she could have gone 4*36 = 144 miles
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He will not catch her before she reaches Glenville.
Cheers,
Stan H.
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