Ratio, Proportion, and Triangle Applications

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Ratio, Proportion, and Triangle Applications
Chapter Six
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Ratio and Rates
Section 6.1
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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
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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
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5
Writing Rates as Fractions
A rate is a special kind of ratio. It is used to
compare different kinds of quantities.
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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
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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