I brought a book and paid $1.80 in sales tax. If the tax was 8%, what was the cost of the book. How do I solve this problem?
0.08x = 1.80
x = 1.8/0.08
x = 22.50
0.08x=1.80
x=1.8/0.08
x=22.50
Thank you. But please explain
To solve this problem, you need to use the formula for finding the amount of sales tax, which is:
Sales Tax = Cost of item × Tax Rate
In this case, we know that the sales tax is $1.80 and the tax rate is 8%. Let's represent the cost of the book with the variable "x." Therefore, we can set up the equation:
1.80 = x × 0.08
To solve for x, divide both sides of the equation by 0.08:
1.80 ÷ 0.08 = x
Simplifying the equation gives you:
22.50 = x
So, the cost of the book is $22.50.
To recap, to calculate the cost of the book, you need to divide the given sales tax by the tax rate and solve for the cost.