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jeanieb
20.08.2019 •
Mathematics
What is a scale factor from polygon a to polygon b? expain your reasoning.
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Ответ:
Find out the what was the original price of her purchase .
To prove
Let us assume that the original price of her purchase be x.
As given
A store is having a 20%-off sale on all merchandise. If Mai buys one item and saves $13 .
20% is written in the decimal form.
= 0.20
Than the equation becomes
x × 0.20 = 13
x = $65
Therefore the original price of her purchase is $65.