Ratio, Proportion, and Triangle Applications

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# Ratio, Proportion, and Triangle Applications - PowerPoint PPT Presentation

Chapter Six. Ratio, Proportion, and Triangle Applications. Section 6.1. Ratio and Rates. 53% = . Writing Ratios as Fractions. A ratio is the quotient of two numbers. . For example, a percent can be thought of as a ratio, since it is the quotient of a number and 100.

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## Ratio, Proportion, and Triangle Applications

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Chapter Six

Section 6.1

### Ratio and Rates

53% =

Writing Ratios as Fractions

A ratio is the quotient of two numbers.

For example, a percent can be thought of as a ratio, since it is the quotient of a number and 100.

or the ratio of 53 to 100

Martin-Gay, Prealgebra, 5ed

a

b

Ratio

The ratio of a number a to a number b is their quotient. Ways of writing ratios are

a to b,

a : b,

and

Martin-Gay, Prealgebra, 5ed

Writing Rates as Fractions

A rate is a special kind of ratio. It is used to compare different kinds of quantities.

Martin-Gay, Prealgebra, 5ed

Finding Unit Rates

To write a rate as a unit rate, divide the numerator of the rate by the denominator.

314.5 ÷ 17 = 18.5

The unit rate is

Martin-Gay, Prealgebra, 5ed

Finding Unit Prices

When a unit rate is “money per item,” it is also called a unit price.

A store charges \$2.76 for a 12-ounce jar of pickles. What is the unit price?

(\$0.23 per

ounce )

Martin-Gay, Prealgebra, 5ed