In 1990, the price of a gallon of unleaded gasoline was $1.37. In 1998, it was $1.02 per gallon. What is the decrease expressed as a percent change? Round to the nearest tenth of a percent if necessary.

Question

Mathematics

Jessica Christensen

22 July, 15:38

In 1990, the price of a gallon of unleaded gasoline was $1.37. In 1998, it was $1.02 per gallon. What is the decrease expressed as a percent change? Round to the nearest tenth of a percent if necessary.

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Answers (1)

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Susan Clarke · Answer 1

The decrease is 35c

Q = X/100 of $1.37 = 0.35

1.37x/100 = 0.35

1.37x = 35 then divide each side by 1.37

Result is 25.5474453 percent, round up to nearest tenth.

Answer is 25%