A punch bowl is in the shape of a hemisphere​ (half of a​ sphere) with a radius of 10 inches. The cup part of a ladle is also in the shape of a hemisphere with a radius of 6 inches. If the bowl is​ full, how many full ladles of punch are there in the​ bowl?

Respuesta :

Answer:

There are 4 full ladles of punch in the bowl.

Step-by-step explanation:

Given the radius ''R'' the volume of a sphere is :

[tex]V=\frac{4}{3}(\pi)R^{3}[/tex]

Therefore, the volume of half of a sphere is :

[tex]V(HalfOfASphere)=\frac{V(Sphere)}{2}[/tex]

[tex]V(HalfOfASphere)=\frac{2}{3}(\pi)R^{3}[/tex]

Let's start calculating the volume of the punch bowl (inches = in) :

[tex]V(PunchBowl)=\frac{2}{3}(\pi)(10in)^{3}=\frac{2000}{3}(\pi)in^{3}[/tex]

Now we calculate the volume of the cup part of the ladle :

[tex]V(Ladle)=\frac{2}{3}(\pi)(6in)^{3}=144(\pi)in^{3}[/tex]

Finally we divide the volume of the punch bowl by the volume of the ladle

[tex]\frac{V(PunchBowl)}{V(Ladle)}=\frac{\frac{2000}{3}(\pi)in^{3}}{144(\pi)in^{3}}=4.63[/tex]

They are 4.63 ladles in the punch bowl. Therefore, there are 4 full ladles of punch in the bowl.

If the bowl is​ full, there are 4 full ladles of punch are there in the​ bowl.

Given

A punch bowl is in the shape of a hemisphere​ (half of a​ sphere) with a radius of 10 inches.

The cup part of a ladle is also in the shape of a hemisphere with a radius of 6 inches.

How to calculate the volume of the sphere?

The formula is used to calculate the volume of the sphere is;

[tex]\rm Volume = \dfrac{4}{3}\pi r^3[/tex]

The volume of half of a sphere is;

[tex]\rm Volume = \dfrac{\dfrac{4}{3}\pi R^3}{2}\\\\\rm Volume = \dfrac{2}{3}\pi R^3[/tex]

Then,

The volume of punch bowl is;

[tex]\rm Volume = \dfrac{2}{3}\pi R^3 \\\\Volume = \dfrac{2}{3}\pi (10)^3 \\\\Volume = \dfrac{2}{3}\pi \times 1000 \\\\Volume = \dfrac{2000}{3}\pi\\\\[/tex]

The volume of the cup part of the ladle is;

[tex]\rm Volume = \dfrac{2}{3}\pi R^3 \\\\Volume = \dfrac{2}{3}\pi (6)^3 \\\\Volume = \dfrac{2}{3}\pi \times 216 \\\\Volume = 2}\pi \times 72\\\\ Volume = 114\pi[/tex]

Therefore,

If the bowl is​ full, how many full ladles of punch are there in the​ bowl is;

[tex]\rm Number \ of \ punch = \dfrac{Volume \ of \ bowl}{Volume \ of \ ladles}\\\\ Number \ of \ punch = \dfrac{\dfrac{2000}{3}\pi }{144\pi }\\\\ Number \ of \ punch = 4.63[/tex]

Hence, If the bowl is​ full, there are 4  full ladles of punch are there in the​ bowl.

To know more about the Volume of the sphere click the link given below.

https://brainly.com/question/1131434

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