SOLUTION: John mixed 3/4 liter of yellow paint with 1 1/4 liters of red paint to mak 2 liters of orange paint. To make a new batch of orange paint, he used exactly 1 liter of red paint. Usin

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Question 1015372: John mixed 3/4 liter of yellow paint with 1 1/4 liters of red paint to mak 2 liters of orange paint. To make a new batch of orange paint, he used exactly 1 liter of red paint. Using the same ratio, how many liters of yellow paint should John use to make his new batch of orange paint?
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
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John mixed 3/4 liter of yellow paint with 1 1/4 liters of red paint to highlight%28make%29 2 liters of orange paint. To make a new batch of orange paint,
he used exactly 1 liter of red paint. Using the same ratio, how many liters of yellow paint should John use to make his new batch of orange paint?
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Let us write 11%2F4 as 5%2F4 for convenience.

Then your proportion is %28%283%2F4%29%29%2F%28%285%2F4%29%29 = x%2F1, which is the same as
3%2F5 = x%2F1.

Now you can easily find the unknown amount of the yellow paint x:

x = 3%2F5 liters.