Answer:

Step-by-step explanation:
SOHCAHTOA
O =Opposite
A = Adjacent
H = Hpotenuse
If we draw it out we can see that the opposite side is the UT and adjacent side is SU for ∠S.
When an angle is asked for like here is S so the opposite side of the angle is the opposite side. and the angle close to it is the adjacent. The biggest side is the hypotenuse.
You can first make the equations:
6x+4y=548
y-12=x
Here, you can use the substitution method and you get:
6(y-12)+4y=548
6y-72+4y=548
10y=620
y=62
Then there are 62 student tickets and 50 adult tickets.
X=21/2
X=10.5
X=10 1/2
There all right
Pls mark me brainliest
Step-by-step explanation:
I hope this is right, I used demos
Answer:
18.75
Step-by-step explanation:
first hour: 400×(1/4) = 100
second hour: 100×(1/4) = 25
third hour: 25×(1/4) = 18.75