Question

A desk is on sale for 15% off. The sale price is $612.
What is the regular price?

Answer 1

$720

Explanation:

Step 1: Set up the expression.

• 
  `(612)/(1-0.15)`

Step 2: Simplify.

• 
  `(612)/(0.85)`

Step 3: Convert 0.85 into a fraction.

• 
  `612/ (85)/(100)`
• 
  `612/ (17)/(20)`

Step 4: Multiply 612 by reciprocal of 17/20.

• 
  `612 * (20)/(17)`

• 
  `36 * 20`
• 
  `720`

Therefore, the regular price was $720.