It takes 3 1/2 gallons of gas to travel 8 and 3/4 miles what is the unit rate of miles per gallon

2 1/2 miles per gallon

Step-by-step explanation:

So to travel 8 3/4 miles, we need 3 1/2 gallons of gas. All we need to do is divide the gallons of gas by miles. So we would do 8 3/4 divided by 3 1/2. 3 1/2 goes into 8 3/4 2 1/2 times.

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24