The price of books are $180 but he uses a 30% discount but there is a 4% tax what is the total price?

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07-02-2022
Mathematics

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The price of books are $180 but he uses a 30% discount but there is a 4% tax what is the total price?

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jdoe0001 jdoe0001 · Answer 1 · 2022-02-07T21:10:22+01:00

well, so the book is 180 and is discounted by 30%, how much will that be?

[tex]\begin{array}{|c|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{30\% of 180}}{\left( \cfrac{30}{100} \right)180}\implies 54\qquad \qquad \underset{\textit{discounted price}}{\stackrel{180-54}{126}}[/tex]

so from that discounted price, a tax of 4%

[tex]\begin{array}{|c|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{4\% of 126}}{\left( \cfrac{4}{100} \right)126}\implies 5.04\qquad \qquad \underset{\textit{final price}}{\stackrel{126+5.04}{131.04}}[/tex]