3 years ago

If the average (arithmetic mean) of 2, 7, and x is 12, what is the value of x?

Mathematics

1 answer:

posledela3 years ago

5 0

Answer:

27. (2+7+27=36 36÷3=12) 36=total of the three numbers, 3=Amount of numbers, 12=Average

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yKpoI14uk [10]

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Alenkinab [10]

Answer:

$\huge\boxed{\sf t = 0.6}$

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$\sf 0.15(10t-9) = 0.75(4t-3)\\\\Resolving \ Parenthesis\\\\1.5t-1.35 = 3t - 2.25\\\\Combining \ like \ terms\\\\-1.35 + 2.25 = 3t-1.5t\\\\0.9 = 1.5t\\\\Dividing \ both \ sides \ by \ 1.5\\\\0.9/1.5 = t\\\\0.6 = t\\\\OR\\\\\bold{t = 0.6}$

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<h2>~AnonymousHelper1807</h2>

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3 years ago

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2 years ago

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