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A truck can be rented from company A for $110 a day plus $0.40 per mile. Company B charges $80 a day plus $0.70 per mile to rent the same truck. Find the number of miles in a day at which the rental costs for company A and B are the same.

 Aug 26, 2020
 #1
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Let m be the number of miles traveled so both rental costs for A and B are the same.

 

We form an equation:

 

110+0.4x=80+0.7x

30=0.3x

x=100 miles.

 Aug 27, 2020

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