# Math

posted by .

I have the answer to the first part of the question, which is What is the volume of Ted's Submarine model. The answer is 490.08=volume. The second part of the question is if 1 inch in the model represents 20 feet in the actual submarine, what is the volume of the actual submarine. The front round part is 3 inch radiusl the middle part is radius 3 inch/length 12 inches; the tail is 3 inch radius/length is 4 inches. Having a problem figuring this part out.

• Math -

front hemisphere volume is 2/3 pi * 3^3
middle cylinder volume is pi * 3^2 * 12
tail cylinder is pi * 3^2 * 4
Add 'em up. I get 508.93

Maybe I misunderstood the problem.

Anyway, having the volume of the model, the real sub is scaled up by a factor of 20*12 = 240

So, the volume is scaled up by a factor of 240^3

## Similar Questions

1. ### math

I need some serious help. I am a grade 10 student and I have this assignment due for tomorrow, but I can't get past the first question. The first part of the question asks me to calculate the volume of a box (prism) measuring 100mm …
2. ### Math Calculus Word Problem

an 18 inch by 20 inch sheet of cardboard is cut and folded to make a box for the great pecan company. a. write a polynomial funtion to model the volume of the box. how can i graph this?
3. ### fraction

Give examples of three categories of fraction models. What real models have you used that correspond to each of these?
4. ### same type of binomial theorem question

Question: Find the first 3 terms in the expansion, in ascending powers of x, of (2 + x)^6. Hence, obtain the coefficient of x^2 in the expansion of (2 + x - x^2)^6 I know the first part of the question, and the first 3 terms are (64 …
5. ### Algebra

Here is a question, but I am having a problem finding the right systems of equation. Are the ones I have written correct?
6. ### Please take a look

Here is a question, but I am having a problem finding the right systems of equation. Are the ones I have written correct?