A laptop has a list price of 645.98 before taxes if the sales tax rate is $7.5% find the total cost of the laptop with sales tax included

Answer 1

I think there is a slight error in the question. I am assuming the sales tax rate is 7.5%, and the dollar sign in front of the 7 is erroneous.

Our goal is to find 7.5% of $645.98, which is the total tax, and then add that back to $645.98 to find the final price. You can do that in one step by first converting 7.5% to a decimal, which is 0.075, and then add one to that, which is 1.075, and multiplying by the price of the laptop, $645.98.

645.98 x 1.075 = 694.4285

Since we are dealing with money, we will round to 2 decimal places, or 694.43.

The total cost for the laptop is $694.43.

Answer 2

Sales tax applies to the sale of items and is applied to the price paid for the item. A laptop was sold for 645.98 before tax with a tax rate of 7.5%. the math is as follows:

Sale price X Tax Rate = Tax

645.98 X 7.5% = 48.4485

Finally the total sale cost would be the sale price plus the tax

Sale Price + Tax = Total Cost

645.98 +48.4485 = 694.4285

Assuming no other variables our total cost would be 694.4285