Mira picked two numbers from a bowl. the difference of the two numbers was 4, and the sum of one-half of each number was 18. the system that represents mira’s numbers is below.
x – y = 4
x + y = 18
which two numbers did mira pick?
(10, 8)
(18, 4)
(20, 16)
(40, 32)

Based on the description, the system can be explained in equation form as x - y =4, an (x + y)/2 = 18. Based on these equations, we can plus in numbers from the given answers and come up with a solution where both equations are satisfied. The two numbers that satisfy both equations are (20, 16).