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anonymous
 5 years ago
The price of a gallon of unleaded gas has dropped to $2.81 today. Yesterday's price was $2.86 . Find the percentage decrease. Round your answer to the nearest tenth of a percent.
anonymous
 5 years ago
The price of a gallon of unleaded gas has dropped to $2.81 today. Yesterday's price was $2.86 . Find the percentage decrease. Round your answer to the nearest tenth of a percent.

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how do i add fractions?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0To find the percentage decrease, you need to first find the decrease, and then find how much that is in relationship to the original value. It dropped from $2.86 to $2.81, so the decrease is $0.05. You divide the decrease, $0.05, with the original price, $2.86, to find the percentage decrease. Multiply that value by 100 to get the value in percent.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'm still bad with that kind of percents, but I kept a few notes on how to find the whole, part, or percent of a number. I think you divide the part by the whole.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0part/whole = decimal percentage; x100 to get a normal percentage number

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.02.81 1  = decimal percentage 2.86 decimal(100) = normal looking percentage :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I divide the part by the whole then move the decimal 2 places to the right, which then becomes the percent.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0of course then I would round the answer.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0moving the decimal is not really a mathmatical solution; its more of a memory device :) but yes...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Heh, just something my teacher taught me. If there's a more precise way, I don't know it yet XD

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0for example: .26 = 26/100 26  (100) = 26 is the math way; the memory way is 100 'move the decimal'
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