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QOTD #4 What is the average (arithmetic mean) of 2x 1 3, 5x
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02 Jul 2016, 06:58
02 Jul 2016, 06:58
Expert Reply
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Question Stats:
89% (00:31) correct
10% (00:00) wrong based on 28 sessions
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What is the average (arithmetic mean) of (2x + 3), (5x - 4), (6x - 6), and 3x – 1?
A \(2x + 4\)
B \(3x - 2\)
C \(3x + 2\)
D \(4x - 2\)
E \(4x + 2\)
A \(2x + 4\)
B \(3x - 2\)
C \(3x + 2\)
D \(4x - 2\)
E \(4x + 2\)
Re: QOTD #4 What is the average (arithmetic mean) of 2x 1 3, 5x
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04 Jul 2016, 21:12
04 Jul 2016, 21:12
1
Carcass wrote:
What is the average (arithmetic mean) of 2x 1 3, 5x 2 4, 6x 2 6, and 3x – 1?
A \(2x + 4\)
B \(3x - 2\)
C \(3x + 2\)
D \(4x - 2\)
E \(4x + 2\)
A \(2x + 4\)
B \(3x - 2\)
C \(3x + 2\)
D \(4x - 2\)
E \(4x + 2\)
Is there something missing from the question? I am not able to understand what 2x 1 3, 5x 2 4, 6x 2 6 mean.
Re: QOTD #4 What is the average (arithmetic mean) of 2x 1 3, 5x
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13 Jul 2016, 13:39
13 Jul 2016, 13:39
1
rapsjade wrote:
Carcass wrote:
What is the average (arithmetic mean) of 2x 1 3, 5x 2 4, 6x 2 6, and 3x – 1?
Is there something missing from the question? I am not able to understand what 2x 1 3, 5x 2 4, 6x 2 6 mean.
Is there something missing from the question? I am not able to understand what 2x 1 3, 5x 2 4, 6x 2 6 mean.
1 = +
2 = -
I surmised. Then checked the answer.
2x + 3
5x - 4
6x - 6
3x - 1
(2x + 3) + (5x - 4) + (6x - 6) + (3x - 1)
4
(16x - 8) / 4 =
4x - 2
