1 / 12

Section 2.2: Rate, Unit Rate, and Unit Price

Section 2.2: Rate, Unit Rate, and Unit Price. Objectives:. I can define what a rate, unit rate, unit price is. I can express rates, unit rates, and unit price using words and symbols. I can identify, describe, and record rates from real-life examples. I can solve problems using rates. Rate.

lerato
Download Presentation

Section 2.2: Rate, Unit Rate, and Unit Price

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Section 2.2:Rate, Unit Rate, and Unit Price

  2. Objectives: • I can define what a rate, unit rate, unit price is. • I can express rates, unit rates, and unit price using words and symbols. • I can identify, describe, and record rates from real-life examples. • I can solve problems using rates.

  3. Rate • What is a rate? • A rate is a comparison between two quantities measured in different units of measurement. • What is an example of a rate? • You ran 5 miles in 2 hours. A rate to represent you running would be 5 miles or 5 miles per 2 hours 2 hours • 5 apples cost $2.00. A rate to represent the cost of the apples would be $2.00 5 apples • REMEMBER – ALWAYS put money in the numerator! • Notice:A rate can be written as a fraction only!

  4. Rate • More examples of a rate? • You paid $1.69 for a 100 gram of sugar. A rate to represent your case $1.69 or $1.69 per 100 gram 100 g • Your heart beats 72 beats every one minute. A rate to represent your heart beating would be: 72 beats or 72 beats per minute min • REMEMBER – ALWAYS put money in the numerator!

  5. Unit Rate • What is a unit rate? • A unit rate is a rate in which the second term is one . • What is an example of a unit rate? • You ran 20 km in one hour. A unit rate to represent you running is 20 km or 20 km per hour! h • How do we find unit rate? • 1st: Set up a unit rate • 2nd: Divide by the denominator • 3rd: Write your answer in word form (the numerator PER the denominator).

  6. Unit Rate • Another example of a unit rate. • A car drives 30 miles on 10 gallons. To write a unit rate follow the three step. • 1st: Set up a rate 30 miles 10 gallons • 2nd: Divide by the denominator 30 miles ÷ 10 = 3 miles 10 gallons ÷ 10 1 gallon • 3rd: Write in word form 3 miles per gallon

  7. Unit Rate • Your turn. • Heba earns $78.00 for working 6 hours at Tim Hortons. Determine the unit rate for this situation. • 1st: Set up a rate $78.00 6 hr • 2nd: Divide by the denominator $78.00 ÷ 6 = $13.00 6 hr ÷ 6 1 hr • 3rd: Write in word form $13.00 per hour

  8. Show You Know • In your binder, do Show You Know questions on page 57. • Show All your work! • Answers: • A) 6 m per 1 s • B) $11 per 1 h • C) $1.8 per can

  9. Remember the Key Words • Rate: • A rate is a comparison between two quantities measured in different units of measurement. • Example: 100 words or 100 words per 5 min 5 min • Unit Rate: • A unit rate is a rate in which the second term is one . • Example: 15 km or 15 km per 1 hour 1 hr

  10. Unit Price • What is a unit price? • A unit price is a unit rate that makes it easier to compare the cost of similar items. • Often used when shopping • Usually shown per 100g or 100 mL • What is an example of a unit rate?

  11. Unit Price • How do we find unit price? • 1st: Set up a unit price formula. • 2nd: Divide cost by the volume. • 3rd: Write your answer in word form (the numerator PER the denominator).

  12. Homework • Page 60 • Questions: 4, 5, 6 • Page 61 • Questions: 10, 11, and 13

More Related