Question

Jina drove 240 miles using 9 gallons of gas.At this rate,how many gallons of gas would she need to drive 216 miles?

Answer 1

8.1 gallons of gas

Explanation:

240/9=216/x

simplify 240/9 into 80/3,

80/3=216/x

cross product

3*216=80*x

648=80x

x=648/80

x=8.1