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Ch. R - Review of Basic Concepts
Lial - College Algebra 13th Edition
Lial13th EditionCollege AlgebraISBN: 9780136881063Not the one you use?Change textbook
All textbooksLial 13th EditionCh. R - Review of Basic ConceptsProblem 152
Chapter 1, Problem 152

Write each percent as a decimal. 39%

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1
Understand that to convert a percent to a decimal, you divide the percent value by 100 because 'percent' means 'per hundred'.
Write the percent as a fraction: 39100.
Divide 39 by 100 to convert the fraction to a decimal form.
Move the decimal point two places to the left in the number 39 to perform the division by 100.
Write the resulting decimal number, which represents 39% as a decimal.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Understanding Percentages

A percentage represents a part out of 100. It is a way to express ratios or fractions with a denominator of 100. For example, 39% means 39 out of 100.
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Converting Percent to Decimal

To convert a percent to a decimal, divide the percentage value by 100. This shifts the decimal point two places to the left. For instance, 39% becomes 0.39.
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Converting Standard Form to Vertex Form

Decimal Notation

Decimal notation expresses numbers using a decimal point to separate the whole number part from the fractional part. Decimals are used for precise values less than one, such as 0.39.
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Interval Notation
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