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3 years ago

12

3(3x+2)<8(x+2)<6(5x-12) =

2 answers:

iren [92.7K]3 years ago

8 0

$3(3x+2) < 8(x+2) < 6(5x-12)\\\\9x+6 < 8x+16 < 30x-72\\\\\#1\\9x+6 < 8x+16\ \ \ \ \ |subtract\ 6\ from\ both\ sides\\9x < 8x+10\ \ \ \ \ \ \ |subtract\ 8x\ from\ both\ sides\\x < 10\\\\\#2\\8x+16< 30x-72\ \ \ \ \ \ \ \ |subtract\ 16\ from\ both\ sides\\8x < 30x-88\ \ \ \ \ \ \ \ \ |subtract\ 30x\ from\ both\ sides\\-22x < -88\\22x > 88\ \ \ \ \ \ \ \ \ |divide\ both\ sides\ by\ 22\\x > 4\\\\From\ \#1\ \cap\ \#2\ we\ have\ 4 < x < 10\Rightarrow x\in(4;\ 10)$

kolezko [41]3 years ago

7 0

3(3x+2) < 8x + 16 => x < 10
8x + 16 < 30x - 72 => 22x > 88 => x > 4
solution is 4 < x < 10

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1 year ago

William works at a nearby electronics store. He makes a commission of 6% percent on everything he sells. If he sells a computer

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<h3><u>Solution:</u></h3>

Given that,

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<em><u>To find: Commission amount of William</u></em>

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3 years ago