Final answer:
The value is a solution because the statement is true when substituting z = 5 into the equation.
Step-by-step explanation:
To determine whether the given value is a solution, we substitute the value of z into the equation and check if the statement is true. The given equation is 20 ≤ (10)/(2z) + 20 and z = 5. Substituting z = 5 into the equation, we have 20 ≤ (10)/(2(5)) + 20. Simplifying, we get 20 ≤ (10)/(10) + 20 = 20+20 = 40. Since 20 is less than 40, the statement is true. Therefore, the value is a solution.