Question

The original price of an electric scooter was $187.50. The scooter was on sale for $165. What was the discount rate?

Answer 1

Answer: I got 12% after trial an error from 15% down to 12% when i got 165$

Answer 2

so the origiinal price is 187.50 and the sale price was 165, so the discount is 187.50 - 165 = 22.5.

if we take 187.50 to be the 100%, what is 22.5 off of it in percentage?

`\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 187.5&100\\ 22.5&x \end{array}\implies \cfrac{187.5}{22.5}=\cfrac{100}{x}\implies 187.5x=2250 \\\\\\ x=\cfrac{2250}{187.5}\implies x=12`