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Miles fills his gas tank with 6 gallons of unleaded gas for $26.58 . How much would it cost him to fill the tank with 18 gallons?A) $4.06B) $78C) $35.85D) $79.74

User Borntyping
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We will caluclate the cost per gallon first. Then, we will multiply the new quantity by this cost, so we get the new cost.

As we are told that 6 gallons costs 26.58, we can divide 26.58 by 6 to calculate the cost per gallon. It would be


(26.58)/(6)=4.43

Now we multiply this quantity by 18, so we get the cost of 18 gallons. It would be


4.43\cdot18=79.74

so the cost of 18 gallons is 79.74

User Iamchris
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