1) Gathering the data, we can write down the following list:
• Maximum Capacity of the Elevator: 2500 lbs
,
• The average weight of a box: 75 lbs
,
• The average weight of a crate: 160 lbs
,
• x stands for boxes
,
• y stands for crates
2) As the maximum capacity of the freight elevator is 2500 lbs no cargo over that capacity can be lifted up by this elevator. As we don't know the number of boxes and neither we have the number of crates we can write down the following:
Note that the weight of the boxes and crates are used as the coefficients of this inequality. e And that is the answer