a book normally costs $21.50. today it was on sale for 15.05. what percentage discount was offered during the sale?

To find the discount %, we must use the equation below.

Discounted Price / Original Price = 1 - Discount %

15.05 / 21.5 = 1 - Discount %

Subtract 15.05 / 21.5 from both sides and add Discount % to both sides to get the following equation.

Discount % = 1 - 15.05 / 21.5 = 1 - 0.7 = 0.3 = 30% discounted

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poojatomarb76 poojatomarb76 · Answer 2 · 2022-05-04T13:25:47+02:00

The percentage discount offered during the sale will be 0.3 % The word percent means per 100. It is represented by the symbol ‘%’.

What is the percentage?

The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100.

The discount % is found as;

[tex]\rm \frac{Discount \ price }{original \ price } = 1 - Discount \ \% \\\\ \rm \frac{15.05 }{21.5 } = 1 - Discount \ \% \\\\ Discount \ \%=1-\frac{15.05}{21.05} \\\\ Discount \ \%=1-0.7\\\\ Discount \ \%=0.3[/tex]

Hence a percentage discount offered during the sale will be 0.3 %

To learn more about the percentage refer to the link;

https://brainly.com/question/13450942

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