The cost of a tank of gasoline varies directly with the amount of gas added to the tank. The cost for...

Question

The cost of a tank of gasoline varies directly with the amount of gas added to the tank. The cost for filling up Jeremy's 30 gallon tank was $150.00. What was the cost for Julia filling up her 20 gallon tank?
$100.00
$15.14
$30.89

SnapAndSolve AI · Accepted Answer

Since the cost varies directly with the amount of gas, we can set up a proportion based on the given information:

Cost for 30 gallons: $150.00

Cost for 20 gallons: x

Proportion: 30/150 = 20/x

Cross-multiply to solve for x:

30x = 150 * 20

30x = 3000

x = 3000 / 30

x = $100.00

The cost for Julia filling up her 20 gallon tank is $100.00.

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The cost of a tank of gasoline varies directly with the amount of gas added to the tank. The cost for...

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