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A produce store offers red and green apples. In one morning they sold 39 apples total, if 9 of the apples they sold were red, what is the ratio of green sold to red sold?

Sagot :

Red apples + green apples = 39 apples
9 red apples + green apples = 39 apples
OR
Red apples = X
Green apples = Y

X + Y = 39
9+Y= 39 
Y= 30 (Subtract 9 from both sides)

ratio= 9/30 or 3/10 (reduce the fraction by dividing by 3)