SOLUTION: person drove for 3 hours on I-10 (interstate 10), then decreased his speed by 10 miles per hour for the next 3 hours. if his total trip was 360 miles, what was his speed the first
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Question 276537: person drove for 3 hours on I-10 (interstate 10), then decreased his speed by 10 miles per hour for the next 3 hours. if his total trip was 360 miles, what was his speed the first hour of his trip in miles per hour?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
3x+3(x-10)=360
3x+3x-30=360
6x=390
2x=130
x=65 mph first hour
195+165=360
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