What is the approximate volume of the cone? PLEASE HELP ASAP 38 PTS
1 answer:
Answer:
B. 2120
Step-by-step explanation:
The formula to find the volume of a cone is 1/3 h.
But lets simply find the volume of the circle first. 15 x 15 is 225. Lets put 3.14 as . So 225 x 3.14 is 706.5. The volume of a cylinder would be 706.5 x 9 is 6358.5.
A cone is 1/3 of a cylinder, so 6358.5 /3 is 2119.5
Rounded up is B. 2120 cm
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Answer:
53
Step-by-step explanation:
Let x be the number of children tickets sold and y be the number of adult tickets sold. Then
x+y=128.
The cost of x children tickets is $5.10x and the cost of y adult tickets is $9.70y, so
5.10x+9.70y =896.60.
From the first equation,
x=128-y,
then
53 adult tickets were sold.