Answer:
Step-by-step explanation:
The formula of a surface area of a ball (sphere):
R - radius
We have R = 15in. Substitute:
If you want to get an approximation, then:
Answer:
264 naira
Step-by-step explanation:
Given that:
Amount earned per year = 2460
Rate of interest paid : 10k per naira earned
Tax paid by messenger per year :
100k = 1 naira
10k = (100/10) = 0.1 naira
Hence 0.1 naira is paid as tax on every naira earned
Total amount paid on 2640 Naira :
Amount paid per naira * total amount earned
(0.1 * 2640) = 264 naira
Answer:
Step-by-step explanation:
The volume of a cylinder can be calculated with the following formula:
Where "r" is the radius and "h" is the height.
The volume of a sphere can be found with this formula:
Where "r" is the radius.
Then, volume of the empty cylinder is:
And the volume of the ball is:
Finally, you need to subtract them in order to calculate how much water is in the cylinder:
Answer = 2 cups
To find the number of cups in days you divide the number of cups by how long it took
5/2.5 = 2