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20-10-2016
Mathematics

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Daniel paid $22 for a water bottle. This amount includes 5% tax. What was the cost of the item before tax?

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apologiabiology apologiabiology

20-10-2016

includes 5%
100+5=105%

22=105% of original

percent means parts out of 100
105%=105/100=1.05

'of' means mulitply

22=1.05 times original
divide both sides by 1.05
20.95238=original
round
20.95

original is about $20.95

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