Answer:
202 1/2 miles
Explanation:
We want to find how far she can drive on 1/2 a tank of gas.
Her tank can hold 18 gallons. Multiply 18 and 1/2, or divide 18 by 2.
18*1/2=18*0.5=9
or
18/2=9
1/2 a tank of gas is 9 gallons. Now, we need to find how far she can drive. Multiply the number of gallons in 1/2 a tank by the miles per gallon.
gallons in 1/2 tank * miles per gallon
We know she has 9 gallons in 1/2 tank, and she gets 22 1/2, or 22.5 miles per gallon.
9 gallons * 22.5 miles/gallon
9*22.5=202.5= 202 1/2
She can drive 202 1/2 miles on 1/2 a tank of gas.