Proportionalities - High School Math
Card 0 of 4
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)
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)
First set up the proportion:
x = 
Then convert this to gallons:
First set up the proportion:
x =
Then convert this to gallons:
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Sarah notices her map has a scale of 
. She measures 
between Beaver Falls and Chipmonk Cove. How far apart are the cities?
Sarah notices her map has a scale of
is the same as 
So to find out the distance between the cities
So to find out the distance between the cities
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If 
is directly proportional to 
, and 
when 
, find a formula for 
.
If
since 
and 
Solving for 
, you get that 
Replacing 
in the original equation, you get the answer of
Solving for
Replacing
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If 
is inversely proportional to 
, and if 
when 
, find a formula for 
.
If
Since y is inversely porportional to x, you can use the standard equations of 
where k is a constant. Plugging the given x and y into this equation to solve for k, 
. To get the answer, substitute k into the standard equation.
Since y is inversely porportional to x, you can use the standard equations of
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