Answer:
A
Step-by-step explanation:
So we have the two functions:

And we want to find:

This is the same as saying:

Thus, substitute them for the equations:

Multiply:

Therefore:

The answer is A.
S+a=150
3s+8a=1000
a=-s+150
3s-8s+1200=1000
-5s=-200
s=40
a=110
40 student and 110 adult tickets were sold
Answer:
9/16 or 0.56
Step-by-step explanation:
Answer:
The perimeter is 18 1/6 feet
Step-by-step explanation:
5ft and 4 in + 3ft and 9in
9ft and 1 in or 9 1/12 ft
multiply that by 2 for the other sides
18 1/6 feet