2 years ago

I have 756 cards and i sell 153 what is the percent decrease?

Mathematics

1 answer:

valina [46]2 years ago

6 0

-400.68 glad I could help!

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Drupady [299]

Answer:

x=25

Step-by-step explanation:

60+70=130

180-130=50

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alekssr [168]

Answer:

$\bold{x_1=-\dfrac{3+\sqrt{41}}{2}\approx-4.7\ ,\quad x_2=-\dfrac{3-\sqrt{41}}{2}\approx1.7}$

Step-by-step explanation:

$-2x^2-3x+4=0\\\\a=-2\,,\ b=-3\,,\ c=4\\\\\\x=\dfrac{-b-\sqrt{b^2\pm4ac}}{2a}=\dfrac{-(-3)\pm\sqrt{(-3)^2-4(-2)(4)}}{2(-1)}=\dfrac{3\pm\sqrt{9+32}}{-2}\\\\\\x_1=-\dfrac{3+\sqrt{41}}{2}\approx-4.7\ ,\qquad x_2=-\dfrac{3-\sqrt{41}}{2}\approx1.7$

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2 years ago

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patriot [66]

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Which of the following is an extraneous solution of StartRoot 4 x + 41 EndRoot = x + 5? x = –8 x = –2 x = 2 x = 8

Finger [1]

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when you solve for x you get -8 but when you pkug it back in both sides are not equal, making it extranious

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Serjik [45]

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All of the other answers are incorrect

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