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rachel/411

  • 2 years ago

Joe's dad had a box 2 ft long, 1 ft high, and 1 ft wide in which to pack items from the garage. After packing a few items, Joe found the box was not big enough. He suggested they use another box that was tewce as long, twice as high,and twice as wide. He said the box would have twice the volume as the first box. Was he right? Explain.

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  1. rachel/411
    • 2 years ago
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    @timo86m

  2. hartnn
    • 2 years ago
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    what do u think ? was he right ? whats the formula of volume of box ?

  3. rachel/411
    • 2 years ago
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    lwh?

  4. hartnn
    • 2 years ago
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    yes,V=lwh now twice as long-->2l, twice as high--->2h and twice as wide --->2w so what is the new volume ?

  5. hartnn
    • 2 years ago
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    is it 2V ?

  6. rachel/411
    • 2 years ago
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    um it is not twice the volume of the first box.

  7. hartnn
    • 2 years ago
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    thats correct, its not twice. So, how many times is the new volume ?

  8. rachel/411
    • 2 years ago
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    um, 4?

  9. rachel/411
    • 2 years ago
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    how come?

  10. hartnn
    • 2 years ago
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    new V = (2l)(2w)(2h) =... ?

  11. rachel/411
    • 2 years ago
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    2*2*4?

  12. rachel/411
    • 2 years ago
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    16?

  13. hartnn
    • 2 years ago
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    new V = (2l)(2w)(2h) =2*2*2 lwh = ...?

  14. rachel/411
    • 2 years ago
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    8.

  15. rachel/411
    • 2 years ago
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    so, wht should i write?

  16. hartnn
    • 2 years ago
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    yes. new volume is 8 times the old.

  17. rachel/411
    • 2 years ago
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    okay. but he is not correct. so,no,because the new box has a volume of 8 times more than the old one?

  18. rachel/411
    • 2 years ago
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    would that be a good statement?

  19. hartnn
    • 2 years ago
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    yes, the statement is correct.

  20. rachel/411
    • 2 years ago
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    thank you,sir*shakes hands with hartnn*

  21. hartnn
    • 2 years ago
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    welcome ^_^

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