Question

The mean of two numbers is 10 and their difference is zero. Find the numbers

Answer 1

Answer:

$\\ x = 10 \\ \\ y = 10$

therefore the two numbers are 10. and 10.

Step-by-step explanation:

$let \: the \: two \: numbers \: be \: x \: and \: y \\ \\ \frac{x + y}{2} = 10 \\ \\ x + y = 20 \\ \\ x - y = 0 \\ \\ adding \: these \: equations \\ \\ 2x = 20 \\ \\ x = 10 \\ \\ y = 10$

Answer 2

10 = x + x / 2
20 = 2x
x = 10

The numbers are 10 and 10 respectively.

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