to sum two numbers you add them together
then to get twice that you multiply the sum by 2
e.g. if the two numbers are 5 and 8
the sum = 5 + 8 = 13
twice that is 13 x 2 = 26
The numbers are: 7 and 13
the sum of two whole numbers are 77 .their difference is 48.what are the two numbers
a difference
To find the median with two numbers, do as you would to find the "average" or the "mean" by finding the sum between the two numbers and dividing the sum (or total) by two.
call the numbers a & b (a+b)2 = a2+2ab+b2 which is greater than a2 + b2 by twice the product of the numbers. Check: say 3 and 5 32 + 52 = 9 + 25 = 34 (3 +5)2 = 64, greater by twice a x b. QED -------------------- If a and b are the numbers, then (a+b)2 = a2 + 2ab + b2, which is different from a2 + b2 (not necessarily larger). The two quantities are equal only when one (or both) of a,b is zero.
18 and 6
8 and 15.
Only one . . . . . 18
5 and 2
The sum of any two consecutive whole numbers is always odd, and equal to one more than twice the first number (2x+1).
38 and 12
Equation, not expression. A and B are two numbers. (A + B)2 = A2 + B2 + 2(AB) ----------------------------------
The numbers are: 7 and 13
The numbers are: 48+22 = 70
122
244
244