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19 September, 11:30

Last week's gas prices at a local gas station decreased by 2% this Monday, but by this current weekend, they have increased by 1%. The current price this weekend is? % of last week's prices before the changes. (Round to the nearest tenth.)

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  1. 19 September, 15:20
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    Assuming the last weeks price is 100 then it decrease by 2% So the price is 100 (1 - 0.02) = 98 Then it increase again by 1% so the price would be 98 (1 + 0.01) = 98.98 So it is (98.98 / 100) x 100 = 98.98 % of the price before it change
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