Answer: 5.98 inches
Step-by-step explanation:
1. You have that the formula for calculate the volume of a cone is:

Where V is the volume, r is the radius and h is the height.
2. By definition, the diameter is twice the radius. Therefore, you need to solve for the radius:

3. Substitute values:

4. The diameter is:

You find out how much money Sonja had before she paid by taking the $30 she had left and adding it to the $12.50 she paid. $30.00-$12.50 = $42.50
Answer:
3 people attended the banquet
Step-by-step explanation:
The function is given as:
b = 75 + 15n where
b represents the total = 122
n represents the number of people attending = ??
If the total cost of the banquet is 122, how many people attended the banquet?
Hence,
122 = 75 + 15n
122 - 75 = 15n
47 = 15n
Divide both sides by 15
n = 47/15
n = 3.1333333333
Approximately to the nearest whole number = 3
Therefore, 3 people attended the banquet.