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January 27, 2015

January 27, 2015

Posted by **rj** on Thursday, April 11, 2013 at 9:23am.

- math -
**gngraqn**, Thursday, April 11, 2013 at 9:42am39.95-19.95=20

.39-.29=.10

20/.10=200m

- math -
**Reiny**, Thursday, April 11, 2013 at 10:23amcost1 = .39x +19.95 , where x is the number of mile

cost2 = .29x + 39.95

when is cost1 = cost2 ?

.39x + 19.95 = .29x + 39.95

.1x = 20

x= 20/.1 = 200

the cost is the same at 200 miles

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