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qaws [65]
2 years ago
11

Please Help me!!!!

Mathematics
2 answers:
ehidna [41]2 years ago
5 0
Solving the equation is quite simple.

We replace C with 441 and we get

18n+45=441 => 18n=441-45 => 18n=396

=> n= 396/18 => n=22


So at the cost of 441$ we have 22 feet of cabinet
Vlada [557]2 years ago
5 0
C=18n+45
Replace C with 441

441=18n+45

Subtract 45 on both sides
441=18n+45
-45 -45

396=18n
Divid 396 by 18 which will get you 22.
To double check your answer fill in the 22 for the n
441=18(22)+45
18x22=396
396+45=441
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3 years ago
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2 years ago
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Fittoniya [83]
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we do the same for the second inequation. Then the solution, is the region of the x-y axes colored in both cases.

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y+ \frac{2}{3}x\ \textless \ 4

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ii)y=- \frac{2}{3} x+ 4       use points ( 0, 4),   (3, 2)


let's use the point P(3, 3) to see what region of the lines need to be coloured:

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y+ \frac{2}{3}x\ \textless \ 4
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The graph representing the system of inequalities is the region colored both red and blue, with the blue line not dashed, and the red line dashed.



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