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wariber [46]
3 years ago
11

Original price: $150; Markdown:40%(show work please)

Mathematics
1 answer:
zepelin [54]3 years ago
8 0
Original price is $150 so you times 150 by 0.40
150 x 0.40 = 60
So you take the $150 and you subtract $60 from $150
150 - 60 = 90
So the answer is $90
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Please solve this proportion with steps (I'm stuck)<br> (9x+6)/18= (20x+4)/3x
guapka [62]
\frac{9x+6}{18}=\frac{20x+4}{3x}

Cross multiply. Distribute...
3x(9x+6)=18(20x+4)\\27x^2+18x=360x+72\\27x^2-342x-72=0\\3x^2-38x-8=0

OH GOD IT'S A QUADRATIC
<em>(our equation is in ax² + bx + c = 0 form. a=3. b= -38. c= -8.
</em><em>plug these values into the quadratic formula and simplify.)</em>
x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{-(-38)\pm\sqrt{(-38)^2-4(3)(-8)}}{2(3)}=\frac{38\pm\sqrt{1444+96}}6\\\\\sqrt{1444+96}=\sqrt{1540}=\sqrt{4\times345}=2\sqrt{345}\\\\\frac{38\pm2\sqrt{345}}6=\boxed{x=\frac{19\pm\sqrt{345}}3}

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7 0
3 years ago
Read 2 more answers
Impossible question for me plz help
klio [65]

Answer:

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8 0
3 years ago
-4(x+9) - x &gt; 3x - 14
stira [4]

Answer:

x=9

Step-by-step explanation:

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3 0
3 years ago
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olasank [31]

Answer:

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Step-by-step explanation:

Let the number be x

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x = 130 !

[ slide the solution if not opening ]

8 0
4 years ago
Answer this question.​
makvit [3.9K]

Answer:

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5 0
3 years ago
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