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The average (arithmetic mean) of two numbers is 4x. If one o
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11 Dec 2018, 14:08
11 Dec 2018, 14:08
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7% (00:11) wrong based on 57 sessions
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The average (arithmetic mean) of two numbers is 4x. If one of the numbers is y, then the value of the other number is
A. x – 4y
B. 4x + 4y
C. 8x – 4y
D. 4y – 8x
E. 8x – y
A. x – 4y
B. 4x + 4y
C. 8x – 4y
D. 4y – 8x
E. 8x – y
Re: The average (arithmetic mean) of two numbers is 4x. If one o
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17 Dec 2018, 20:50
17 Dec 2018, 20:50
1
Expert Reply
create variable p for unknown amount
then you have (y+p)/2=4x
cross multiply and you have y+p=8x
subtract y to isolate p
p=8x-y
The answer is E
then you have (y+p)/2=4x
cross multiply and you have y+p=8x
subtract y to isolate p
p=8x-y
The answer is E
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The average (arithmetic mean) of two numbers is 4x. If one o
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08 Jul 2021, 09:04
08 Jul 2021, 09:04
Theory: Average = \(\frac{Sum Of All The Values}{Total Number Of Values}\)
The average (arithmetic mean) of two numbers is 4x. If one of the numbers is y
Let other number be z
=> Sum of numbers = y + z
Total number of numbers = 2
=> Average = \(\frac{Sum Of All The Values}{Total Number Of Values}\) = \(\frac{y+z}{2}\)
=> 4x = \(\frac{y+z}{2}\)
=> y + z = 4x*2 = 8x
=> z = 8x - y
So, answer will be E
Hope it helps!
To learn more about Statistics watch the following video
The average (arithmetic mean) of two numbers is 4x. If one of the numbers is y
Let other number be z
=> Sum of numbers = y + z
Total number of numbers = 2
=> Average = \(\frac{Sum Of All The Values}{Total Number Of Values}\) = \(\frac{y+z}{2}\)
=> 4x = \(\frac{y+z}{2}\)
=> y + z = 4x*2 = 8x
=> z = 8x - y
So, answer will be E
Hope it helps!
To learn more about Statistics watch the following video
