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R ATIOS, R ATES, AND U NIT R ATES Objective: Learn to work with rates and ratios
R ATE What is a rate? A rate is a comparison of two quantities using division(sounds like ratios, right?) that have different units. Example: Reads “60 miles per 2 hours” This is a unit rate
U NIT R ATE What is a unit rate? A unit rate is a rate in which the denominator has a quantity of 1 unit. Example: 4 packets of oatmeal per 2 cup of water.
U NIT P RICE What is a unit price? A unit price is a unit rate that compares cost to item(or cost per item) Example: $5 for 2 bags of family size chips
A PPLICATION By design, movies can be viewed on screens with varying aspect ratios. The most common ones are Order the width-to-height ratios from least to greatest.
F INDING U NIT P RICE Black CDs can be purchased in packages of 3 for $4.99, or 10 for $15.49. Which is the better buy?
E XAMPLE 1: Order the ratios 4:3, 23:10, 13:9, and 47:20 from least to greatest.
E XAMPLE 2; Use the bar graph below to find the number of acres, to the nearest acre, destroyed in Nevada and Alaska per week.
E XAMPLE 3: Pens can be purchased in a 5- pack for $1.95 or a 15-pack for $6.20. Which is the better buy?
Learn to work with rates and ratios.
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U NIT R ATES. A rate is a ratio of two quantities measured in different units. A unit rate is a rate that has a denominator of 1 unit. The three unit.
01/18/ Unit Rates Warm Up A shopping cart contains 35 cans of soda, 16 oranges, 17 carrots, and 29 cookies. Write ratios for each of the following.
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Problem of the Day There are 3 bags of flour for every 2 bags of sugar in a freight truck. A bag of flour weighs 60 pounds, and a bag of sugar weighs 80.
Objective: Learn to identify, write, and compare ratios and rates.
Course Ratios, Rates, and Unit Rates 5-2 Rates, and Unit Rates Course 3 Warm Up Warm Up Problem of the Day Problem of the Day Lesson Presentation.
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Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall. Chapter 5 Ratio, Proportion, and Measurement.
5-2 Rates, and Unit Rates Warm Up Problem of the Day
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SOL 7.4, 8.3a Use measures expressed as rates (e.g., speed, density) and measures expressed as products (e.g., person- days) to solve problems; check the.
Course Ratios, Rates, and Unit Rates Warm Up Divide. Round answers to the nearest tenth
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