SOLUTION: john drove 6 hours before stopping to eat. after lunch,he increased his speed 10 mph. if he completed the 380-mile trip in 8 hours of driving time how fast did he drive in the afte
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Question 623563: john drove 6 hours before stopping to eat. after lunch,he increased his speed 10 mph. if he completed the 380-mile trip in 8 hours of driving time how fast did he drive in the afternoon?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Distance equals rate times time. If we let 
represent the speed in the afternoon, the distance he traveled in the morning is )
and the distance he traveled in the afternoon is 
. These two distances add up to 380, so:
\ =\ 380)
Solve for
John
My calculator said it, I believe it, that settles it
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