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german
4 years ago
13

If average of m numbers is n^2 and average of n numbers is m^2 then average of m+n numbers is 

Mathematics
1 answer:
kkurt [141]4 years ago
4 0
The sum of the m numbers divided by m (which is the average) equals n^2. Then, the sum of the m numbers equals mn^2.
The sum of the n numbers divided by n (which is the average) equals m^2. Then, the sum of the n numbers equals nm^2.
The average of m+n numbers which is the sum of the m numbers plus the sum of the n numbers divided by (m+n) equals (mn^2+nm^2)/(m+n). This is mn(n+m)/(m+n). Then the factor (m+n) can be ruled out and the result is mn.
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Anvisha [2.4K]

Answer:

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Step-by-step explanation:

5/8 as well as 10/16 = .625

a=8 blocks for 5 min given in question

b:24*0.625=15

c:25*40=.625 or 8 * 5=40 , since 5×5=25 taking 1st column times 5

3 0
3 years ago
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The equations given in the question is

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6 0
2 years ago
State that the triangles in each pair of similar. If so, complete the similarity statement, and find the scale factor for each o
ser-zykov [4K]

9514 1404 393

Answer:

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Step-by-step explanation:

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3 years ago
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3 years ago
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