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7-3. Analyze Units. Pre-Algebra. Warm Up Find each unit rate. 1. Jump rope 192 times in 6 minutes 2. Four pounds of bananas for $2.36 3. 16 anchor bolts for $18.56 4. 288 movies on 9 shelves. 32 jumps/min. $0.59/lb. $1.16/bolt. 32 movies/shelf. - PowerPoint PPT Presentation
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Pre-Algebra
7-3 Analyze Units
Warm UpFind each unit rate.
1. Jump rope 192 times in 6 minutes
2. Four pounds of bananas for $2.36
3. 16 anchor bolts for $18.56
4. 288 movies on 9 shelves
32 jumps/min
$0.59/lb
$1.16/bolt
32 movies/shelf
Pre-Algebra
7-3 Analyze Units
Pre-Algebra
7-3 Analyze Units
Learn to use one or more conversion factors to solve rate problems.
Pre-Algebra
7-3 Analyze Units
Vocabulary
conversion factor
Pre-Algebra
7-3 Analyze Units
The conversion factor
• must introduce the unit desired in the answer and
• must cancel the original unit so that the unit desired is all that remains.
Helpful Hint
Pre-Algebra
7-3 Analyze Units
Find the appropriate factor for each conversion.
Additional Example 1: Finding Conversion Factors
A. feet to yards
B. pounds to ounces
There are 3 feet in 1 yard.
There are 16 ounces in 1 pound.
Pre-Algebra
7-3 Analyze Units
Try This: Example 1
Find the appropriate factor for each conversion.
A. minutes to seconds
B. hours to days
There are 60 seconds in 1 minute.
There are 24 hours in 1 day.
Pre-Algebra
7-3 Analyze Units
Lesson Quiz
Find the appropriate factor for each conversion.
1. kilograms to grams
2. pints to gallons
3. You drive 136 miles from your house to your aunt’s
house at the lake. You use 8 gallons of gas. How many
yards does your car get to the gallon?
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