anonymous
  • anonymous
A box with no top is made by taking a rectangular sheet of metal and cutting away four equal-sized squares (one from each corner of the sheet) and then folding up the resulting aps. The box should be made 4 cm deep and the length of the base should be 15 cm more than the width. If the volume is to be 1000 then what should be the width of the sheet of metal?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
ok so volume here is 1000. 1000=length*width*height, say width=x then length=x+15. so solve the quadratic equation 4x^2+20x-1000=0
anonymous
  • anonymous
i got 26?
anonymous
  • anonymous
well that wont give you the right volume tho

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More answers

anonymous
  • anonymous
actually nevermind the quadratic formula , i think you need help its late at night im tired, there answer is 10. 10*25*4 is 1000
anonymous
  • anonymous
10 is the width length is 15 more so its 25. cheers
anonymous
  • anonymous
thats not one of the mutiple choices... but thanks for trying
anonymous
  • anonymous
lol what are your multiple choices
anonymous
  • anonymous
list them
anonymous
  • anonymous
Still working on this one?
anonymous
  • anonymous
yes he wants to know the width still, i said it was 10 but i guess that is wrong
anonymous
  • anonymous
A) 18 cm B) 20 cm C) 22 cm D) 24 cm E) 26 cm
anonymous
  • anonymous
oh i forgot about the boxes that were cut out, yes 10 is the width of the inner box but its made from the sheet metal so you have to add the little boxes you cut off which makes it 10+4+4=18, however my reasoning was correct to get 10. i just failed to realize that thats not what the question asked for.
anonymous
  • anonymous
ok, well thanks...
anonymous
  • anonymous
do you understand better how to do this problem now tho?
anonymous
  • anonymous
not at all

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