Question 1111708
{{{R=D/V}}}
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{{{RV=D}}}
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Fuel efficiency rate R, volume of fuel V, distance traveled D




<pre>
CAR             RATE       VOLUME      DISTANCE
First Car        15          v          15v
Second Car       35         35-v       35(35-v)
Totals                       35         825
</pre>


Volume is gallons and distance is miles; fuel efficiency in MILES per GALLON


v is the gallons used by First Car.

Solve the equation {{{15v+35(35-v)=825}}}.
Use this to evaluate gallons used by the Second car.