Monica paid sales tax of $1.20 when she bought a new bike helmet. If the sales tax rate was 6%, how much did the store charge for the bike helmet before tax?
To find out how much the store charged for the bike helmet before tax, we need to calculate the total cost including tax and then subtract the tax amount.
We know that the sales tax rate is 6%. This means that the tax amount is 6% of the price of the bike helmet.
Let's assume the price of the bike helmet before tax is "X".
To find the tax amount, we multiply the price before tax by the tax rate:
Tax amount = 6% of X = 0.06 * X
According to the given information, Monica paid a tax of $1.20. So we can set up the equation:
0.06 * X = $1.20
To solve for X, we divide both sides of the equation by 0.06:
X = $1.20 / 0.06
X = $20
Therefore, the store charged $20 for the bike helmet before tax.