If the arithmetic mean of two numbers is 10 and their product is 91 then the numbers are.

it's from progressions, if a and b are the two real numbers, then the single arithmetic mean between a and b = a+b/2
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AVERAEJ=10, so (x+y)/2=10 & thus x+y=20, so y=20-x... x*y=91... x*(20-x)=91... -x^2 +20x -91=0, or x^2 -20x +91=0... yuze quadratik equashun & get... roots=13 or 7...the 2 numbers... 7+13=0... 7*13=91
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