posted by Sara on .
A gas station sells regular gas for $2.20 per gallon and premium gas for $2.70 a gallon. At the end of a business day 220 gallons of gas were sold and receipts totaled $519. How many gallons of each type of gas were sold?
I know its a linear equation. just cant find out how to put it in equation form..
Let x=number of gallons of regular sold
then 220-x=number of gallons of premium sold
Solve for x.