# Solving word problems in cost comparisons using oil prices.

Fuel oil prices averaged $0.93375 in the winter of 1998, then shot up to $1.02 in

winter 1999. Calculate the additional fuel costs for a household that used 863 5/8

gallons of fuel oil during the winter of 1999.

https://brainmass.com/math/algebra/solving-word-problems-cost-comparisons-oil-prices-3453

#### Solution Preview

The change in the rate of oil price is given by the difference ...

#### Solution Summary

Cost comparisons are solved for using a variable.

$2.19