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The jelly junior high schools color is made by mixing red paint with yellow paint.the ratio of red to yellow is 3 to 5.how much red paint shou le be mixed with 20 oz of yellow?

Respuesta :

How much red paint should be mixed with 20 oz of yellow 
red is the unknown (x) and yellow is 20 ounces 

x/20 = 3/5 
cross multiply 
5x = 60 
divide by 5 
5/5x = 60/5 
x = 12 oz 

answer = 12 oz

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