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13. The suggested retail price of a football is $65.00. During a sale, the football was on sale at 15%
off the regular price. What was the sale price of the football?


Sagot :

[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{15\% of 65}}{\left( \cfrac{15}{100} \right)65}\implies 9.75~\hfill \begin{array}{llll} \textit{65 minus 15\% of it}\\\\ 65-9.75\implies 55.25 \end{array}[/tex]

A percentage is a way to describe a part of a whole. The sale price of the football is $55.25.

What are Percentages?

A percentage is a way to describe a part of a whole. The total percentage is always equal to 100%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

Given that the suggested retail price of a football is $65.00. Also, during a sale, the football was on sale at 15% off the regular price.

Since the price is 15% off, therefore, the price of the football will be only 85% of the real price. Thus, we can write the price of the football after the discount as,

Price after discount = 85% of the regular price

                                 = 0.85 × $65.00

                                 = $55.25

Hence, the sale price of the football is $55.25.

Learn more about Percentages:

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