Problema Solution
A freight elevator has a capacity of 3000 pounds. If a barrel averages 30 pounds and a crate 120 120 pounds, write and inequality that describes when x barrels and y crates will cause the elevator to be overloaded.
Answer provided by our tutors
if let be x là number of barrels, y is number of crates.
We have,
30x + 120y > 3000