SOLUTION: yolanda will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $70 and costs and costs and additional $0.30 per mile driven. The sec

Question 1047182: yolanda will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $70 and costs and costs and additional $0.30 per mile driven. The second plane has no initial fee but costs $0.80 per mile driven. How many miles would Yolanda need to drive for the two plans to cost the same?
Found 2 solutions by addingup, josmiceli:
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
Let x be the number of miles driven.
70+0.30x = 0.80x
70 = 0.50x flip the equation to keep the x on the left
0.50x = 70 divide both sides by 0.50
x = 140 miles
At 140 miles they both cost the same.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = distance in miles Yolando drives
Let = the cost of either plan in dollars
Cost of the 1st plan:
(1)
Cost of the 2nd plan:
(2)
---------------------
Set the costs of the 2 plans equal to eachother

mi
She has to drive 140 mi for the 2 plans to be the same
----------------------------
check answer:
(1)
(1)
(1)
(1)
and
(2)
(2)
(2)
OK

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