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Primo car rental agency charges ​30 dollars per day plus ​0.25 dollars per mile. Ultimo car rental agency charges ​20 dollars per day plus 0.80 dollars per mile. Find the daily mileage for which the Ultimo charge is three times the Primo charge.

 Aug 18, 2021
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(30 + .25x)  * 3     =  20 + .80 x       solve for 'x'   the number of miles for Ultimo = 3 * Primo

 Aug 18, 2021

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