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BreadOfTheBear
14.04.2020 •
Mathematics
A box with no top is to be constructed from a piece of cardboard whose length measures 5 in. more than its width. The box is to be formed by cutting squares that measure 2 in. on each side from the four corners and then folding up the sides. If the volume of the box will be 100 in.cubed, what are the dimensions of the piece of cardboard?
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Ответ:
Step-by-step explanation:
GIVEN: A box with no top is to be constructed from a piece of cardboard whose length measures
more than its width. The box is to be formed by cutting squares that measure
on each side from the four corners and then folding up the sides.
TO FIND: If the volume of the box will be
, what are the dimensions of the piece of cardboard.
SOLUTION:
Let the width of cardboard be![x](/tpl/images/0598/5394/a0e3f.png)
length of cardboard![=x+5\text{ inch}](/tpl/images/0598/5394/21ac7.png)
As box is formed by cutting
squares from corners of cardboard
length of cardboard![=x+5-4=x+1\text{ inch}](/tpl/images/0598/5394/f3a47.png)
width of cardboard![=x-4\text{ inch}](/tpl/images/0598/5394/97187.png)
height of cardboard![=2\text{ inch}](/tpl/images/0598/5394/b620a.png)
volume of cardboard![=\text{length}\times\text{width}\times\text{height}](/tpl/images/0598/5394/162ac.png)
solving we get
width of cardboard![=9\text{ inch}](/tpl/images/0598/5394/7d2b8.png)
length of cardboard![=x+5=14\text{ inch}](/tpl/images/0598/5394/9f58f.png)
height of cardboard![=2\text{ inch}](/tpl/images/0598/5394/b620a.png)
Ответ: