Rate and Unit Rate PA (3).notebook
Warm­Up
February 01, 2017
Tuesday 1­31
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Rate and Unit Rate PA (3).notebook
February 01, 2017
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Rate and Unit Rate PA (3).notebook
February 01, 2017
A RATE is a special ratio that compares quantities in different units.
A rate looks like....
Miles
Hours
Dollars
Gallons
Cents
Pounds
Players
Teams
A UNIT RATE is a ratio that describes how many units of one quantity correspond to one unit of another quantity. The quantities are in different units. The word "per" is often used to compare.
A unit rate looks like....
Cents
1 Pound
Miles
1 Hour
Dollars
1 Gallon
Players
Each Team
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Rate and Unit Rate PA (3).notebook
February 01, 2017
Write the rate for each situation, then express each rate as a unit rate. Round to the nearest hundredth if necessary.
• $11 for 4 boxes of cereal
• 400 miles on 14 gallons of gasoline
• $18.50 for 5 pounds 4
Rate and Unit Rate PA (3).notebook
February 01, 2017
Using Unit Rates to Solve Problems
• An online music store sells 15 songs for $12. Another online music store sells 10 songs for $9. Which online store has the lower cost per song?
• A store sells two different sizes of the same brand of sunscreen, an 8 ounce bottle for $5.76 and a 12 ounce bottle for $8.88. Which size bottle is the better buy per ounce? Explain.
• A typical bottle nosed dolphin will take about 34 breaths in 4 hours. How many breaths will a bottlenose dolphin take in 7 hours?
• .
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Rate and Unit Rate PA (3).notebook
February 01, 2017
Peer Partners
Textbook p. 191 #1­8
rs
Answe
1. $24 per day
5. 4.3 gal/min
2. 19.6 mi/gal
6. 9.5 ft/s
3. 21.1 points per game
7. Mr. Nut
4. $3.25 per lb
8. 272 mi
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Rate and Unit Rate PA (3).notebook
February 01, 2017
1. Express 100 meters in 14 seconds as a unit rate, round to the nearest hundredth if necessary.
2. A bakery can make 195 doughnuts in 3 hours. At this rate, how many doughnuts can the bakery make in 8 hours?
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Rate and Unit Rate PA (3).notebook
February 01, 2017
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