SOLUTION: Set up and solve a proportion to answer the question. The ratio of lime to sand in mortar is 3:7. How much lime must be mixed with 28 bags of sand to make mortar?

SOLUTION: Set up and solve a proportion to answer the question. The ratio of lime to sand in mortar is 3:7. How much lime must be mixed with 28 bags of sand to make mortar?

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Question 995655: Set up and solve a proportion to answer the question.
The ratio of lime to sand in mortar is 3:7. How much lime must be mixed with 28 bags of sand to make mortar?
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
3/7=x/28
7x=28*3
x=84/7
x=12
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