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Mandarinka [93]
4 years ago
9

**Will mark brainilest, please help!** A rectangular piece of metal is 10 in longer than it is wide. Squares with sides 2 in lon

g are cut from the four corners and the flaps are folded upward to form an open box. If the volume of the box is 598 in3, what were the original dimensions (width and length) of the piece of metal?
Mathematics
1 answer:
yuradex [85]4 years ago
8 0

Answer:

The dimensions of the piece of metal can be represented by x and x+10.

Now, 2 in squares are being cut out of each corner.

So the new dimensions are x-4 (2in from each side) and x+10-4 or x+6.

When you fold it up, the height becomes 2 and the base has dimensions x-4 and x+6. Now plug this into the volume formula.

V=l*w*h

1302 = (x+6)(x-4)(2)

651   = x2+2x-24

0      = x2 + 2x-675

0      = (x+27)(x-25)

x=-27 reject since lengths cannot be negative or x=25.

So your original dimension for the piece of metal are 25 by 35.

Step-by-step explanation:

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Let x = age of jack

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Checking:

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