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jolli1 [7]
3 years ago
6

40.00 jeans 20% discount

Mathematics
1 answer:
Rudik [331]3 years ago
5 0
If you are asking for the price, then the jeans would cost $32
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3 years ago
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What is the answer to his question
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Step-by-step explanation:

1200+ <em>720</em> + 720 + <u>360</u> =3000

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\large\boxed{x=\dfrac{1}{2}}

Step-by-step explanation:

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\dfrac{x+3}{x-4}=\dfrac{x-5}{x+4}\qquad\text{cross multiply}\\\\(x+3)(x+4)=(x-4)(x-5)\qquad\text{use FOIL}\ (a+b)(c+d)=ac+ad+bc+bd\\\\(x)(x)+(x)(4)+(3)(x)+(3)(4)=(x)(x)+(x)(-5)+(-4)(x)+(-4)(-5)\\\\x^2+4x+3x+12=x^2-5x-4x+20\qquad\text{combine like terms}\\\\x^2+(4x+3x)+12=x^2+(-5x-4x)+20\\\\x^2+7x+12=x^2-9x+20\qquad\text{subtract}\ x^2\ \text{from both sides}\\\\7x+12=-9x+20\qquad\text{subtract 12 from both sides}\\\\7x=-9x+8\qquad\text{add}\ 9x\ \text{to both sides}\\\\16x=8\qquad\text{divide both sides by 16}\\\\x=\dfrac{8}{16}\\\\x=\dfrac{8:8}{16:8}\\\\x=\dfrac{1}{2}\in D

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3 years ago
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nalin [4]

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y=1/2x-2

Step-by-step explanation:

8 0
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