## anonymous 5 years ago a rectangle has a volume of 3 cubic feet.the rectangle is 24 inches long and 18 inches wide.what is the height in inches of the rectangle

1. anonymous

What is the formula for the volume of a rectangle?

2. anonymous

One thing that I should point out is that 3 cubic feet= $1ft^{3}*\frac{12in}{1ft}\frac{12in}{1ft}\frac{12in}{1ft}=1728in$

3. anonymous

Do you know what to do?

4. anonymous

i know i have to find the height bt how do i find the height

5. anonymous

You remember the formula for the volume of a rectangular prism, right?

6. anonymous

length$$*$$width$$*$$height?

7. anonymous

yes bt can you answer the question that i put

8. anonymous

Yes, but I'm not just going to tell you the answer.

9. anonymous

What you need to do is realize that length*width*height=volume. So in this case, 24*18*something=1728. What does "something" have to be?

10. anonymous

4

11. anonymous

Right!

12. anonymous

why does it have to equal 1728

13. anonymous

Sorry, not 1728, 5184. 1 cubic foot is 1728 cubic inches, so 3 cubic feet is 5184 cubic inches.

14. anonymous

so then what do i have to do now

15. anonymous

Just replace 1728 by 5184 and figure out what you need instead of 4.

16. anonymous

12

17. anonymous

Yup.

18. anonymous

19. anonymous

can you help me with another question

20. anonymous

21. anonymous

Sure, what's the question?

22. anonymous

what is the volume of a cone shaped party hat with a base whose circumference is25.12 inches and height is 8 inches

23. anonymous

oh and i have many math questions to ask you if you dont mind

24. anonymous

hellooooooooooooooooo

25. anonymous

hello are you there