Arithmetic 62644

The sum of the two numbers is 18, and their difference is 10. What are the numbers? Calculate the arithmetic mean of the product and the proportion of these numbers.

Correct answer:

a =  14
b =  4
m =  29.75

Step-by-step explanation:

a+b=18 ab=10  a+b=18 ab=10  Row2Row1Row2 a+b=18 2b=8  b=28=4 a=18b=184=14  a=14 b=4
x=a b=14 4=56 y=a/b=14/4=27=321=3.5  m=2x+y=256+27=4119=2943=29.75

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