Answer:
There were 30 children and 10 adults.
Step-by-step explanation:
Since they sold tickets to adults and childrens, the sum of those tickets must be equal to the total tickets that were sold, so we can mount our first equation as shown below:
adult + children = 40
Each adult ticket costs $9 and each children costs $5 and the total recieved was $240, therefore:
9*adult + 5*children = 240
We can mount the following equation system:
adult + children = 40
9*adult + 5*children = 240
We will multiply the first equation by -5 and sum both equations:
-5*adult -5*children = -200
9*adult + 5*children = 240
4*adult = 40
adult = 40 / 4
adult = 10
adult + children = 40
children = 40 - adult = 40 - 10 = 30
There were 30 children and 10 adults.
Answer:
h = 39
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h
We know the volume is 10000pi and the diameter is 32
The radius is 32/2 = 16
10 000 pi = pi (16)^2 h
Divide each side by pi
10 000 pi/pi = pi/pi (16)^2 h
10 000= 256 h
Divide each side by 256
10000/256 = 256h/256
39.0625 = h
To the nearest whole number
h = 39
The answer is 110 degrees.
Hope it helps!
Answer:
x=6
Step-by-step explanation:
