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OpenStudy (anonymous):
The average of three numbers is 50. The average of five different numbers is 74. What is the weighted mean of all the numbers together? 62 64 65 69
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OpenStudy (anonymous):
65
OpenStudy (anonymous):
50*(3/8)+74*(5/8) = 65
OpenStudy (anonymous):
thank you for the lesson @DoYourHomework
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