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german
3 years ago
6

The mean of 4 8 9 x and 2x is 6 calculate the value of x

Mathematics
1 answer:
Paul [167]3 years ago
7 0

Answer:

x = 3

Step-by-step explanation:

Mathematically, the mean is the sum of the numbers divided by the count of the numbers

The count of the numbers is 5

Thus;

( 4 + 8 + 9 + x + 2x)/5 = 6

(21 + 3x)/5 = 6

21 + 3x = 6(5)

21 + 3x = 30

3x = 30-21

3x = 9

x = 9/3

x = 3

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Best of Luck!

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3 years ago
In class, joe notices a triangular shaped desk. leg a is 4 and leg b is 10. find<br> c.
Juli2301 [7.4K]
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3 years ago
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Mazyrski [523]

Answer:

The domain is:

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4 0
3 years ago
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Answer:

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Step-by-step explanation:

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In this case, you would only multiply the "regular" number by 2.

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6 0
3 years ago
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3 years ago
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