Question

one third of the sum of number x and y ​

Answer 1

Answer:

1/3 (x+y)

Step-by-step explanation:

Hope it helps mate

Answer 2

Answer:

“One-third of the sum of two numbers is 6”. Let’s call the two numbers x and y , and let’s also say that x>y. So we can write

x+y3=6(1)

“half of their difference is 4” can be written as

x−y2=4(2)

There are a number of ways to proceed from here, but one fairly straightforward method is to multiply both sides of (1) by 3, and both sides of (2) by 2, to get

x+y=18(3)

x−y=8(4)

If you were to add (3) and (4) together, the y terms would cancel out, leading directly to a solution for x , which you could then substitute back in to (3) or (4) to solve for y . Or, if you prefer, you could subtract (3) from (4) (or (4) from (3), for that matter), to cancel the x terms and solve directly for y ; you could then substitute that into (3) or (4) to solve for x .