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Two cars got an oil change at the same auto shop. The shop charges customers for each quart of oil plus a flat fee for labor. The oil change for one car required 5 quarts of oil and cost $22.15. The oil change for the other car required 7 quarts of oil and cost $25.15. How much is the labor fee and how much is each quart of oil?

Sagot :

Answer:

Labor = $14.65

Step-by-step explanation:

25.15-22.15= 3      3/2 = 1.5

1qt = $1.5

1.5 x 5 = $7.5

22.15 - 7.5 = $14.65

1.5 x 7 = 10.5

25.15 - 10.5 = $14.65

Labor = $14.65

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