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ACCUPLACER Study Guide for MAT 060
I. Percents
Changing Decimals to Percents
Move the decimal point two places to the right and attach a percent sign.
Example 1: . 35 = 35% Example 2: . 04 = 4% Example 3: . 7 = 70%
Changing a Percent to a Decimal
Move the decimal point two places to the left and get rid of the percent sign.
Example 1: 32% = .32 Example 2: 3% = .03 Example 3: 90% = .9
Convert from a Fraction to a Percent
Example: Convert 58 to a percent.
Divide the denominator into the numerator to get a decimal. Convert this to a percent.
.6258 5.000 .625 62.5%??
Convert a Percent to a Fraction
Example: Convert 85% to a fraction
Put the percentage over 100 and reduce to lowest terms.
85
100 ÷
5
5 =
17
20
Finding the Percent of a Value
Example: What is 21% of 350?
Multiply the decimal form of the percentage by the value.
. 21 × 350 = 73.5
Page 2 of 7
Basic Percentage Word Problems
Example 1: 9 is what perc...

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