A compact disc costs $17.97. The sales tax rate is 5%. How much will the total cost be for this compact disc?

Mathematics · College · Thu Feb 04 2021

Answered on

Given the statement:

A compact disc costs $17.97. The sales tax rate is 5%.

Determine the total cost.

Solution:

In order to determine the total cost, we simply must take the percentage of the original cost and add it back to the original cost. This can be done by  multiplying the decimal value of 5% by 17.97. We first need to convert the percentage into decimal. In converting a percentage into decimal, divide the percentage by 100, hence in converting a decimal to percentage, multiply the percentage by 100.

= 5%/100

= 0.05

= ($17.97)(0.05)

=$0.8985

= $17.97 + 0.8985

= $18.87

Final answer:

The total cost is $18.87.