anonymous
  • anonymous
Dexter bought a glass pyramid from a gift store. The pyramid, with a height of 5 cm and a square base of side 3 cm, was packed in a box shaped as a cube of side 6 cm. The empty space in the box was packed with paper tissue. How many cubic centimeters of the box were stuffed with paper tissue?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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IsTim
  • IsTim
Isn't it just the volume of the cube subtracted by the volume of the pyramid then?
IsTim
  • IsTim
In such case the formula for the cube's volume is v=lwh, but I don't know what the formula would be for the square-based pyramid.
anonymous
  • anonymous
I am not really sure.. but i think the answer is 201... ? Is that correct?

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More answers

IsTim
  • IsTim
I don't know. Haven't done the math myself.
anonymous
  • anonymous
can you do it? lol
IsTim
  • IsTim
I'm a bit busy myself. Have confidence. Try re-doing it without looking at your original work if you truly are concerned.
IsTim
  • IsTim
Oh, volume for square-based pyramid is v=1/3b^2h
IsTim
  • IsTim
I'm trying to help.
anonymous
  • anonymous
I know. thanks.. ill try with the formula u gave me..
IsTim
  • IsTim
So I guess your complete formula for the paper tissue is v=lwh -1/3b^2h
anonymous
  • anonymous
ahh i don't have the length though.
IsTim
  • IsTim
Which one?
IsTim
  • IsTim
The cube? All lengths are the same. It's like s^3.
anonymous
  • anonymous
of the pyramid.... i need lwh don't i?
IsTim
  • IsTim
LWh is the cube...
anonymous
  • anonymous
ohh. so its all the same??
IsTim
  • IsTim
What's the same?
IsTim
  • IsTim
Are you good then?
anonymous
  • anonymous
im so confused to be honest..
IsTim
  • IsTim
Hello?
IsTim
  • IsTim
What's the confusion? Just read their our chat to understand...
anonymous
  • anonymous
what??
IsTim
  • IsTim
I don't see what the confusion is.
anonymous
  • anonymous
how to get the answer. if you don't understand what the confusion is.. can you help me, and give me an answer! pleassseee.
IsTim
  • IsTim
I gave you the combined formula, v=lwh -1/3b^2h. Just plug and play.
anonymous
  • anonymous
i did. but i don't have all the things needed for the equation!!!
IsTim
  • IsTim
The values themselves are given in your question.
anonymous
  • anonymous
not all of them..
IsTim
  • IsTim
lwh is the cube. The other one is the square-based pyramid.
anonymous
  • anonymous
can you help me plug them in ? please
IsTim
  • IsTim
l,w and h are all 6.
anonymous
  • anonymous
okay. so v=lwh -1/3b^2h, v=(6)(6)(6)- 1/3(5^2)(3)
IsTim
  • IsTim
Because it is a cube. Cubes have side lengths which are all the same.
anonymous
  • anonymous
are you sure the pyramid formula is squared?
IsTim
  • IsTim
It's not squared. Ignore that if you don't understand.
anonymous
  • anonymous
ohh. okay. so then its just v=(6)(6)(6)- 1/3(5)(3), 216-5=209?
anonymous
  • anonymous
i mean.. 211?
IsTim
  • IsTim
I don't know actually. I haven't done the calculations myself.
anonymous
  • anonymous
Woah. I'm sorry. thanks you really helped! I got the question CORRECT:) anddd can you help me with my other questions.
anonymous
  • anonymous
Ross is constructing two similar boxes shaped as similar rectangular prisms. The larger box has a height of 20 inches and a square base of side length 12 inches. If the smaller box has a height of 15 inches, what is its volume?
IsTim
  • IsTim
Uh. Maybe ask the other guys.
anonymous
  • anonymous
lol. kk

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