Question 435001
Ten minutes after he left his home, Gerald was 40 miles from his grandmother's house. 
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Then, 22 minutes after he left he was 34 miles from her house.
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Notice: In 12 minutes he has gone 6 miles.
His constant rate is distance/time = 6mi/(1/5)hr = 30 mph
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If he was traveling toward his grandmother's home at a constant rate and reached her house after 90 minutes, how far away from her house does he live.
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distance = rate*time
distance = 30 mph*(3/2)hr = 45 miles
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Cheers,
Stan H.
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P.S. I know the answer is "45 miles" but I just need to know how it's solved.
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