owynn wants to buy a computer that normally costs $689.99 but is on sale for 5% off. If he waits two weeks the same computer will be on sale for 15% off . Owynn wants to calculate the cost of the computer for both sales

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20-09-2020
Mathematics

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owynn wants to buy a computer that normally costs $689.99 but is on sale for 5% off. If he waits two weeks the same computer will be on sale for 15% off . Owynn wants to calculate the cost of the computer for both sales

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sashaparislee sashaparislee · Answer 1 · 2020-09-20T23:30:42+02:00

Sorry I don’t have a calculator with me atm but if you just put this into a calculator you’ll have the answer
So I use decimal multipliers for discounts to do this just change your percentage into a decimal with 100% as 1.00 so if it were increasing by 5% it would be 1.05 since it’s a sale the decimal would be 0.95 you can now multiply this to the original price to find this new price
So 689.99 x 0.95
If you follow this again for the 15% sale then the decimal multiplier would be 0.85
So 689.99 x 0.85
Just put these into a calculator and you’ll get your answers