Answer:
3/4
Step-by-step explanation:
X - the number of loads by land carriers,
y - the number of loads by air carriers;
The system of inequalities:
x + y ≤ 150
2,000 x + 1,250 y ≤ 180,000
Sum means addition so the equation is x+5=14
To get the answer, just do 14-5 and the answer is 9