Question

Percents

Michael is leaving a 15% tip for his waitress. What percent of the
original price will he pay? Write your answer as a percent, decimal,
and fraction.

Answer 1

As a percent: 115%

As a decimal: 1.15

As a fraction:
`(23)/(20)`

Explanation:

Percentages

Suppose Michael spends some amount of money on food, and that money is set at 100%. He leaves a 15% tip for the waitress.

Thus, he is really paying 100%+15% = 115% of the original price.

To express a percentage as a decimal, we just divide by 100:

115% = 115/100 = 1.15

The same division should be simplified instead of operated to express the percentage as a fraction:

115% =
`(115)/(100)`

Simplifying by 5:

115% =
`(23)/(20)`

Summarizing:

As a percent: 115%

As a decimal: 1.15

As a fraction:
`(23)/(20)`