Which of the following is a solution of 4x + 5y ≤ 20?

A. (0, 5)

B. (5, 7)

C. (8, 0)

D. (1, 1)

D. (1,1)

Step-by-step explanation:

Just plug in each pair of values in the multiple choice answers for x and y.

If we plug in (1,1)

The equation is

4 (1) + 5 (1) ≤ 20

4+5≤ 20

9≤ 20

Since 9 is less than 20 we know statement is true, so we know (1,1) is a solution.

If we were to plug in any other choice like (0,5), the right side of the equation would be greater than 20 and the statement would not be true.

I have no idea