SOLUTION: Ivan's gas tank is 1/2 full. After he buys 9 gallons of gas, it is 4/5 full. How many gallons can Ivan's tank hold?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Ivan's gas tank is 1/2 full. After he buys 9 gallons of gas, it is 4/5 full. How many gallons can Ivan's tank hold?       Log On


   

Question 525328: Ivan's gas tank is 1/2 full. After he buys 9 gallons of gas, it is 4/5 full. How many gallons can Ivan's tank hold?

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
9/(1.5/5)=x
9*5/1.5=45/1.5
45/1.5=30 gal