Saturday, July 10, 2010

A rental company has 2 rental rates. rate 1 is $72/day +.16/mile. Rate 2 is $144/day +.08/mile. ?

If you plan to rent for one week, how many miles would you need to drive to pay less by taking Rate 2?


A rental company has 2 rental rates. rate 1 is $72/day +.16/mile. Rate 2 is $144/day +.08/mile. ?
Let x = number of miles needed





(72/day)(7days) + (.16/mile)x %26gt; (144/day)(7) + (.08/mile)x





504 + .16x %26gt; 1008 + .08x





.08x %26gt; 504





x %26gt; 6300 miles











Unless you meant $72/week %26amp; $144/week:





72 + .16x %26gt; 144 + .08x





.08x %26gt; 72





x %26gt; 900 miles

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