# Past Exam for MAT 060 - Pre-Algebra at Red Rocks Community College (RRCC)

## Exam Information

 Material Type: Final Professor: Staff Class: MAT 060 - Pre-Algebra Subject: Math University: Red Rocks Community College Term: 2003 Keywords: SubstitutionMixed NumberImproper Fraction      ## Sample Document Text

Page 1 of 7 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...