Answer:
They purchased 11 Packets
Step-by-step explanation:
C=11p + 30
20/2.5 = 8
So 8 movies can be shown in 20 hours.
Answer:
z = 61
Step-by-step explanation:
The exterior angle is congruent (equal to) the sum of the 2 farthest angles from it, so you can set the equation like this:
z + z - 11 = z + 50
Add like terms, which would be the 2 "z's" on the left side:
2z - 11 = z + 50
Then subtract the z on the right side from both sides:
2z - 11 = z + 50
-z -z
___________
z - 11 = 50
Add 11 to both sides:
z - 11 = 50
+ 11 +11
________
z = 61
You need to know the area if you're going to
1st selection: cover the surface of the dartboard.