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A truck can be rented from Company A for ​$40 a day plus ​$0.70 per mile. Company B charges ​$20 a day plus ​$0.90 per mile to rent the same truck. Find the number of miles in a day at which the rental costs for Company A and Company B are the same.

 Jan 31, 2020
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Let the number of miles =M
40 + 0.70M =20 +0.90M, solve for M
M = 100 miles - when the cost will be equal.

 Jan 31, 2020

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