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Ratios and Unit Rates. Lesson 6.1. Learning Targets. I can write and simplify ratios. I can find rates and unit rates. . Ratios. A ratio is a comparison of two quantities by division. You can write a ratio in different ways . Three forms of ratios: Word Ratio Fraction. Examples.
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Ratios and Unit Rates Lesson 6.1
Learning Targets • I can write and simplify ratios. • I can find rates and unit rates.
Ratios • A ratio is a comparison of two quantities by division. You can write a ratio in different ways. • Three forms of ratios: • Word • Ratio • Fraction
Examples students with jobs to students without jobs students without jobs to all students surveyed
Practice • What is the ratio of girls to boys? • What is the ratio of Auburn fans to Alabama fans?
Rates • A rate is a ratio that compares quantities in different units. • A unit rate is a rate that has a denominator of 1. Examples of unit rates include unit prices, gas mileage, and speed.
Examples Which dish detergent is a better value?
Practice • Find the unit rate.Two liters of spring water costs $1.98. • Find the unit rate.A car goes 425 mi on 12.5 gal of gas.
Dimensional Analysis • Convert 10 mi/h to feet per minute. • 3.5 qt/min = _______ gal/h • 12 cm/s = _______ m/h
Homework • Practice 6.1 (All except 10-12)