hi all just wondering if you could assist me with the following question
there are two types of boxes. light boxes which weigh 120kg and heavy boxes which weigh 170kg. a truck can carry at most 3890 kg. the time taken to load a heavy box is 7 minutes. the time taken to load a light box is 6 minutes. the total time spent loading a truck cannot be greater then 177 minutes.
a) taking x as the number of heavy boxes and y as the number of light boxes, model two linear inequalities in x and y
b) what values of x and y lead to the most efficient loading of the truck.
c) the firm pays 82$ for the loading of the each heavy box and 52$ for the loading of each light box. if the truck is loaded in the most efficient way possible way from the workers point of view what will their income be?