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Ratios, Rates, and Unit Rates

Ratios, Rates, and Unit Rates. 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. Unit Rate.

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Ratios, Rates, and Unit Rates

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  1. Ratios, Rates, and Unit Rates Objective: Learn to work with rates and ratios

  2. Rate • 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

  3. Unit Rate • 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.

  4. Unit Price • 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

  5. Application 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.

  6. Finding Unit Price • Black CDs can be purchased in packages of 3 for $4.99, or 10 for $15.49. Which is the better buy?

  7. Example 1: Order the ratios 4:3, 23:10, 13:9, and 47:20 from least to greatest.

  8. Example 2; Use the bar graph below to find the number of acres, to the nearest acre, destroyed in Nevada and Alaska per week.

  9. Example 3: Pens can be purchased in a 5-pack for $1.95 or a 15-pack for $6.20. Which is the better buy?

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