SOLUTION: the ratio of two numbers is 10:7.if the bigger number is 30 what is the smaller number?

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Question 812813: the ratio of two numbers is 10:7.if the bigger number is 30 what is the smaller number?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
10/7=30/x
x=21