SOLUTION: Coen's test scores were 80,90,70. What was his weighted average if the tests were weighted 1,2,5, and , respectively?

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Question 265361: Coen's test scores were 80,90,70. What was his weighted average if the tests were weighted 1,2,5, and , respectively?
Answer by stanbon(75887) About Me  (Show Source):
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Coen's test scores were 80,90,70. What was his weighted average if the tests were weighted 1,2,5, and , respectively?
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Ave = (80+2*90+5*70)/(1+2+5) = 76.25
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Cheers,
Stan H.