Gasoline fuel

You just drove your car 300 miles and used 40 gallons of gas. You know that the gas tank on your car holds 12 1/2 gallons of gas; if the gas you buy is $2.50 per gallon. What would you pay to fill one-half of your tank?

Correct answer:

x =  15 58 = 125/8 USD

Step-by-step explanation:

V1=1221=12+21=212 2+1=224+1=225=12.5 gal V2=V1/2=225/2=2 225=425=6.25 gal x=2.5 V2=2.5 425=8125 USD=1585 USD=15.625 USD

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