SOLUTION: Vacation trip from Washington, D.C.to San Francisco. 5 days travel time and 2800 miles. If I travel 100 miles per day less than the day before, how many miles do I travel each day?

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Question 450302: Vacation trip from Washington, D.C.to San Francisco. 5 days travel time and 2800 miles. If I travel 100 miles per day less than the day before, how many miles do I travel each day?
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Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x+x-100+x-200+x-300+x-400=2800
5x-1000=2800
5x=2800+1000
5x=3800
x=760 day 1
x-100=660 day 2
x-200=560 day 3
x-300=460 day4
x-400=360 day5