Answer:
120
Step-by-step explanation:
14-6=8x15=120
The area of the composite figure is 54. (9 x 6)
Answer:
60
Step-by-step explanation:
<H + <T = 180
2x+ 60 + x + 30 = 180
3x + 90 = 180
3x = 90
x = 30
<T = x + 30 = 30 + 30 = 60
Answer
<T = 60
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.
