When you use a coupon for 15 percent off the original price of a headset you pay 27. What is the original price of the headset Include your equation with the unknown x as well as your answer?

Answer 1

Let the original price be x;

The 15% of x is 15/100 × x

→ the original price less the discount gives the price paid:

x - 0.15x = 27

→ 0.85x = 27

You can now solve for x.

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You can also work in percentages:

the whole price is 100%

The discount is 15%

→ the amount paid is 100% - 15% = 85%

→ 85% of x = 27

→ 85/100 × x = 27

→ 0.85x = 27

as before