At 20 miles per gallon, it would take 9 gallons to travel 180 miles.
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40 gallons
You need 699/30 = 23.3 gallons.
468 miles at 12 miles to the gallon = 468/12 = 39 gallons. 12 mpg!
If a car can go 150 miles on 5 gallons then it will travel 600 miles on 20 gallons of gas
Setup the equation like this:8 gallons / 76 miles = ? gallons / 500 milesYou can then multiply both sides by 500 to get:8 * 500 / 76 = ? gallons = 52.63 gallonsIn fact, you can type the original equation into google.com, and it will do the calculation for you.