Final answer:
The inequality representing the maximum number of boxes that can be loaded into the truck without exceeding the weight limit is x <= 24.
Step-by-step explanation:
The greatest weight that the moving truck can carry is 1,600 pounds. There is a piano that weighs 400 pounds already loaded onto the truck. We want to find out all the possible values of x, the number of 50-pound boxes that can be added without exceeding the truck's maximum capacity. The weight of the boxes can be represented as 50x pounds, where x is the number of boxes.
So, we have the piano's weight + the total weight of the boxes which is equal to 400 + 50x pounds. This total weight must be less than or equal to the truck's maximum capacity, 1,600 pounds, which gives us the inequality:
400 + 50x <= 1,600
To find the solution for x, we need to subtract the weight of the piano from both sides of the inequality:
50x <= 1,600 - 400
50x <= 1,200
Then divide both sides by 50 to solve for x:
x <= 24
Therefore, the inequality that represents all possible values of x, the number of 50-pound boxes that can be loaded into the moving truck, is x <= 24.