Question

*URGENT* PLEASE HELP

Answer 1

Create 2 eq’n, let V = vans and B= buses

1. 150 = 8v + 14b
2. b + v = 15

isolate one variable and substitute it in to an equation:

b = 15 - v

sub “b” into first equation above:

150 = 8v + 14 ( 15 - v)
150 = 8v + 210 - 14v
-60 = -6v
10 = v

sub “v” into equation 2

b = 15 - v
b = 15 - (10)
b= 5

there will be 5 buses and 10 vans to hold 150 students.