a family got 20% off cupon for dinner they paid 45.70 how much was there discout?

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Guest Jun 5, 2015

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Best Answer

If they paid 45.70 after the 20% discount the original cost must have been 45.70/0.8. The discount was therefore 0.2*45.70/0.8 = 45.70/4

${\mathtt{discount}} = {\frac{{\mathtt{45.7}}}{{\mathtt{4}}}} \Rightarrow {\mathtt{discount}} = {\mathtt{11.425}}$

discount = 11.43

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Alan Jun 5, 2015

Alan · Answer 1 · 2015-06-05T08:08:21

If they paid 45.70 after the 20% discount the original cost must have been 45.70/0.8. The discount was therefore 0.2*45.70/0.8 = 45.70/4

${\mathtt{discount}} = {\frac{{\mathtt{45.7}}}{{\mathtt{4}}}} \Rightarrow {\mathtt{discount}} = {\mathtt{11.425}}$

discount = 11.43

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Guest · Answer 2 · 2015-06-05T01:42:19

9 dollars and 14 cenets