Unit 20 problems with answers from http://www.textbooksfree.org/
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Unit 20 Using Proportions and Part 3 Review will help
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Find the missing term in each proportion.




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 4-ounce hamburger?