Question

at a sale shirts were sold for 80% off the original price the original price was $75 how much would be saved

Answer 1

They saved $60

Step-by-step explanation:

First you must set up the equation. Since it was 80% off they payed 20%. So now you need have everything to set up a part/whole equation. We don't know the part so we need to use x for its place. The whole is the original price which is $75.
`(x)/(75) =(20)/(100)` is what the equation should look like. Now we need to cross multiply, so multiply 75 by 20 and you get 1500. Now divide 1500 by 100 and you get 15. That is haw much he payed so now we have to find out what he saved, so subtract 15 from 75 and you get $60. I hope this helped.

Answer 2

`\bf \begin{array}ll \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{80\% of 75}}{\left(\cfrac{80}{100} \right)75}\implies \stackrel{\textit{savings}}{60}`