SOLUTION: three numbers have an average of 15. if two numbers are 10 and 12, what is the other number?
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Question 677474: three numbers have an average of 15. if two numbers are 10 and 12, what is the other number?
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
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22+x = 15(3)
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22 + x = 45
x = 45-22
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