Answer:
43°
Step-by-step explanation:
The first thing you should do is make the equation. We should know that the sum of all the angles is 180. So it should look like this...

Combine like terms:

Subtract the 137 on both sides:

That's it the value of v is 43°.
Let a = Adult tickets, s = Student tickets; we are going to set up a system of equations.
8a + 4s = 880
a - s = 20
We are going to multiply the second equation by so that we can cancel out one of the variables and solve for the other. This gives you:
8a + 4s = 880
4a - 4s = 20
Notice the s-variables will cancel:
12a = 900
a = 75
Now we plug in the amount of adult tickets to solve for the student ones.
75 - s = 20
- s = - 55
Divide both sides by - 1
s = 55.
There were 55 student tickets sold and 75 adult tickets.
Answer:
Step-by-step explanation:
.4s-500=.3s-300
.1s=200
s=$2000
Answer:
4
Step-by-step explanation:
The number of kids who like vanilla is 13 the number of kids who like strawberry is 9
13-9=4
hope this helps!!
Answer:
slope= -7/8
Step-by-step explanation:
y2-y1=1-8=-7
x2-x1=8-0=8
-7/8