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Nataly [62]
3 years ago
12

The temperature is 5°F. By midnight the temperature is expected to drop 15°F. What will the temperature be at midnight?

Mathematics
1 answer:
san4es73 [151]3 years ago
8 0
It will be -10 F because 15 - 5 = -10
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3 years ago
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A rectangular piece of metal is 30 in longer than it is wide. Squares with sides 6 in long are cut from the four corners and the
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Answer:

length=53 in

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Step-by-step explanation:

First, we know that each corner has now a square of 6 in long, so the heigth of the box will be of this size (as you can see in the picture attached). Then, the length and the width of the box would be the same as the piece, but with 12 in less. Therefore the equations to solve the problem are:

h=6 in\\w=x-12\\l=x+30-12\\l=x+18\\\\V: volume of the box\\V=6*(x-12)*(x+18)\\2706=6x^{2}+36x-1296\\0=6x^{2}+36x-4002\\\\

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0=x^{2}+6x-667\\

Finally we solve for x, and we get the initial dimensions of the piece of metal:

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7 0
3 years ago
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velikii [3]

Answer:

h=12

Step-by-step explanation:

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8 0
2 years ago
Find the slope and y-intercept of y=2/5x+5
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4 0
3 years ago
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Distance=speed times time
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time=9.25hr


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2 years ago
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