Question

Monica paid sales tax of $4.50 when she bought a new bike helmet. If the sales tax rate was 9%, how much did the store charge for the bike helmet before tax?

Answer 1

We will see that the price of the bike helmet without the tax is $50

How to find the original price?

Let's define P as the original price, this is the 100%.

We know that a tax rate of the 9% is equal to $4.50, then we can write two equations:

100% = P

9% = $4.50

We can take the quotient between these two equations and solve that for P, we will get:

(100%/9%)*$4.50 = P = $50

So the price of the helmet, without tax, is $50.

If you want to learn more about taxes, you can read:

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