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The product of two integers is 10. Which of the following co
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15 Oct 2018, 09:36
15 Oct 2018, 09:36
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The product of two integers is 10. Which of the following could be the average (arithmetic mean) of the two numbers?
Indicate all possible choices.
A. -5.5
B. -3.5
C. -1.5
D. 1.5
E. 3.5
Indicate all possible choices.
A. -5.5
B. -3.5
C. -1.5
D. 1.5
E. 3.5
Re: The product of two integers is 10. Which of the following co
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17 Oct 2018, 20:42
17 Oct 2018, 20:42
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Carcass wrote:
The product of two integers is 10. Which of the following could be the average (arithmetic mean) of the two numbers?
Indicate all possible choices.
A. -5.5
B. -3.5
C. -1.5
D. 1.5
E. 3.5
Indicate all possible choices.
A. -5.5
B. -3.5
C. -1.5
D. 1.5
E. 3.5
For questions like this, we first do prime factorization
So \(10=1*2*5\)
So possible cases-
1) 2*5=10
So average = \(\frac{(2+5)}{2}\)=3.5
2) (-2)*(-5)=10
So average is -3.5
3) 1*10=10
So average is \(\frac{1+10}{2}=\frac{11}{2}\)=5.5
4) (-1)*(-10)=10
So average is -5.5
Among choices A,B,E
Re: The product of two integers is 10. Which of the following co
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31 Mar 2021, 10:34
31 Mar 2021, 10:34
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