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anonymous

  • 5 years ago

The price of a gallon of unleaded gas was $2.89 yesterday. Today, the price fell to $2.82 . Find the percentage decrease. Round your answer to the nearest tenth of a percent

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  1. anonymous
    • 5 years ago
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    Percentage decrease can be found by taking: |original-new|/original where the original price is $2.89 and the new price is $2.82

  2. anonymous
    • 5 years ago
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    yest price = 2.89 today = 2.82 diff in price = 0.07 this is the difference for $2.89 think this way... the difference for $2.89 -----> $0.07 what is the diff for $100 -----> ? ( percent is for 100 right!?) obviously it's gonna be more, more than 0.07, right? i'd only look at the numbers now $2.89 -----> $0.07 $100 -----> ? (100/2.89) * 0.07 =2.42 therefor the percent of decrease is 2.42%

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