Question 437425
Let {{{m}}} = miles driven
Let {{{C}}} = rental cost
given:
Cheap Truck:
{{{C = 15 + .12m }}}
Trucks 4 Less:
{{{C = 20 + .1m }}}
Set the costs equal to each other
{{{ 15 + .12m = 20 + .1m }}}
{{{ .02m = 5 }}}
{{{ m = 250 }}}
The costs are the same driving 250 miles
check:
{{{C = 15 + .12m }}}
{{{C = 15 + .12*250 }}}
{{{C = 15 + 30 }}}
{{{C = 45 }}}
and
{{{C = 20 + .1m }}}
{{{C = 20 + .1*250 }}}
{{{C = 20 + 25 }}}
{{{C = 45 }}}
OK