So slope=rise/run
rise=8
run=12
8/12=4/6=2/3
the slope=2/3
-9-(-12)=-9+12=3
-9-12=-9+(-12)=-21
Let

the price of a ticket
Let

the cost to put on the show
Formula:
(profit) = (ticket price) * (number of people) - (cost to put on show)
We have two equations here:


Solve:

⇒

⇒

⇒

⇒

So the price of a ticket is $5, and the cost to put on the show is $100.
Answer:
Step-by-step explanation:
1:9:3
brian gets x
alex gets 9x
colin gets 3x
Brian and colin receive 40
x + 3x = 40
x = 10
alex gets 9x = £90
Answer:
Step-by-step explanation:
Sum of angles of a triangle = 180
x + (180 - 105) + (180 -140) = 180
x + 75 + 40 = 180
x = 180 -75 - 40
x = 65