Unit 20
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Unit 20 Using Proportions
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3 Review will help
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PP 21
Practice Problems Index
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Find the missing term in each proportion.  
1)

2) 
3) 
4) The ratio of boys to girls in an advanced English class is 6:5. How many girls are there in a class of 12 boys?
 
5) A map scale indicates that 1 cm equals 40 km. How
far apart are cities separated by 3.25 cm on this map? Hint: Each fraction of the proportion will have the same measuring unit.
 
6) A pound (16 ounces) of hamburger contains 120 grams of fat. How many grams of fat are there in a 4ounce hamburger?
