Question

Arithmetic mean of 4 and 16 is​

Answer 1

Answer:

Mean is 10

Step-by-step explanation:

4+16 /2 = 20/2 = 10

Answer 2

Answer:

Squaring both sides of this equation: x(20-x) = 64 -x^2 + 20x -64 = 0 Solving this for x you get x = 4, 16 The two numbers are 4 and 16 or, if you wish, 16 and 4. The arithmetic mean is nothing but the average. Again, the two numbers are x and 20-x and their average is 8: (x + 20-x)/2 = 8 20/2 = 10

Step-by-step explanation:

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