SOLUTION: John rented a van for $250 for the week plus $.20 a mile. How far can John drive if he only wants to spend a total of $325?

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Question 473469: John rented a van for $250 for the week plus $.20 a mile. How far can John drive if he only wants to spend a total of $325?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
John rented a van for $250 for the week plus $.20 a mile. How far can John drive if he only wants to spend a total of $325
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Assuming a straight-line relationship between miles and cost, we can use the standard form for a straight line, y=mx+b, y=total cost, m=.2, x=miles, b=y-intercept=250
325=.2x+250
75=.2x
x=75/.2=375
ans:
John can drive 375 miles if he only wants to spend a total of $325
see the following graph as a visual check on the answer
..
+graph%28+300%2C+300%2C+-50%2C500%2C+-50%2C+500%2C.2x%2B250%29+