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Example Questions
Example Question #1 : Understanding Direct Proportionality
Sarah notices her map has a scale of . She measures between Beaver Falls and Chipmonk Cove. How far apart are the cities?
Possible Answers:
Correct answer:
Explanation:
is the same as
So to find out the distance between the cities
Example Question #2 : Understanding Direct Proportionality
Sunshine paint is made by mixing three parts yellow paint and one part red paint. How many gallons of yellow paint should be mixed with two quarts of red paint?
(1 gallon = 4 quarts)
Possible Answers:
Correct answer:
Explanation:
First set up the proportion:
x =
Then convert this to gallons:
Example Question #246 : Algebra Ii
If is directly proportional to , and when , find a formula for .
Possible Answers:
Correct answer:
Explanation:
since and
Solving for , you get that
Replacing in the original equation, you get the answer of
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