Dennis bought a book for $12.95, and his total bill was $13.92. What was the sales tax that was applied to his purchase?
What I got was 7.5% but I wanted to make sure it was correct.
You're right.
To calculate the sales tax applied to Dennis' purchase, we need to subtract the cost of the book from his total bill. Here's how you can find the answer:
1. Start by subtracting the cost of the book from the total bill:
Total bill - Cost of the book = Sales tax
$13.92 - $12.95 = Sales tax
2. Calculate the sales tax:
$13.92 - $12.95 = $0.97
So, the sales tax applied to Dennis' purchase is $0.97.
To double-check that the sales tax rate is indeed 7.5%, we can divide the sales tax amount by the cost of the book and multiply by 100:
Sales tax / Cost of the book * 100 = Sales tax rate
$0.97 / $12.95 * 100 = 7.5%
Therefore, your calculation is correct, and the sales tax rate applied to Dennis' purchase is indeed 7.5%.
To find the sales tax, you can subtract the purchase amount from the total bill. Let's calculate it step-by-step:
Step 1: Subtract the purchase amount from the total bill.
$13.92 - $12.95 = $0.97
Step 2: To find the sales tax rate, divide the difference by the purchase amount.
$0.97 / $12.95 = 0.074904
Step 3: Convert the decimal to a percentage by multiplying by 100.
0.074904 * 100 = 7.4904%
So, the sales tax rate applied to Dennis' purchase is approximately 7.49%.