3 years ago

What is the average 112, 109, 115

Mathematics

1 answer:

galina1969 [7]3 years ago

8 0

Add them and dividde by the number of numbers, which is 3.

112 + 109 + 115 = 336

336/3 = 112.

The average is 112.

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3 years ago

4a + 6b= 10 2a - 4b =12 what does 12a=

mixer [17]

4a + 6b = 10
2a - 4b = 12...multiply by -2
----------------
4a + 6b = 10
-4a + 8b = - 24 (result of multiplying by -2)
------------------add
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b = -14/14
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