Question

6. A bookstore offers a 15% discount to its employees. Suppose an employee has a coupon worth $5 off any itent and wants to buy a bools that costs $45. What is the final cost of the book if the employee discount is taken first and then the coupon is subtracted!

Answer 1

Since the employee has a discount of %15, then he only pays %85 of the total price of the book. To find out how much this is we use the rule of three.

Then

`\begin{gathered} 45\rightarrow100 \\ x\rightarrow85 \end{gathered}`

The price of the book after the employee discount is

`((85)(45))/(100)=(3825)/(100)=38.25`

Hence, after the employee discount, the book will cost $38.25. Now we substract the coupon of $5; therefore the book will cost $33.25.