Bus carries 58 students
Van carries 18 students
Let v be the number of students a van can carry
Let b be the number of students a bus can carry
Equations:
16v + 8b = 752
5v + 5b = 380; b = (380-5v)/5
Substitute b to the first equation:
16v + 8(380-5v)/5 = 752
8(380-5v)/5 = 752 - 16v
(3040 – 40v)/5 = 752 -16v
3040 – 40v = (752 -16v)5
3040 – 40v = 3760 – 80v
-40v + 80v =3760 – 3040
40v = 720
v = 18
b = (380-5v)/5 = (380-5{18})/5 = (380 – 90)/5
b = 290/5 = 58