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Percent of a Number

by Kortney
(Bayonne, NJ)











































Percents express a proportion.

To evaluate the expression shown below, first convert the percent to either a fraction whose denominator is 100, or to a decimal.

Replace the "of" with a multiplication sign.

what is 30% of 90

Comments for Percent of a Number

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May 12, 2011
Percent of a Number
by: Staff


The question:

by Kortney
(Bayonne, NJ)

what is 30% of 90


The answer:

Percents express a proportion.

30% means a fraction = 30/100

The fraction of 30/100 can be reduced to the fraction 3/10, or it can be converted to a decimal:

30/100 = 30 ÷ 100 = 0.3


30% of 90 means 30% multiplied by 90

30% multiplied by 90 = 0.3 * 90 = 27



The final answer to your question is:

30% of 90 = 27




Thanks for writing.

Staff
www.solving-math-problems.com



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