If three dozen cookies cost $9, what is the cost per cookie?
2 answers:
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Answer:
As a percent: 115%
As a decimal: 1.15
As a fraction:
Step-by-step explanation:
<u>Percentages</u>
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% =
Simplifying by 5:
115% =
Summarizing:
As a percent: 115%
As a decimal: 1.15
As a fraction: