Expert: Scott A Wilson - 11/3/2009

Question
*etra bought gasoline when the odometer read 15,345.4 After the next filling, the odometer read 15665.6 It took 13.4 gal to fill the take.

a) how many miles did she drive?
b) how many miles per gallon did the car get?

This is another problem that needs to be worked out.

Answer
To get the number of miles that she drove take the ending value on the odometer -
start value on the odometer.  This is 15665.6 - 15,345.4 = 320.2.

The amount of gas that it took to get this far was 13.4 gallons.

This means the mileage would be 320.2/13.4 = 23.9 mpg.