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pickupchik [31]
3 years ago
9

Alana bought a stock, which dropped 10% from the previous day. The value of her stock, after the price drop was $305 Wh ch equat

ion could she use to find the price of the stock before the price drop?
Mathematics
1 answer:
White raven [17]3 years ago
7 0
If the original price was 'p', the new price would be 'p - 10%p' or 'p - 0.1p'. We know this is equal to 305, so 'p - 0.1 p = 305' would be the equation.
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A party rental company has chairs and tables for rent. The total cost to rent 3 chairs and 5 tables is $39 . The total cost to r
IrinaVladis [17]
3c + 5t = 39....multiply by -3
9c + 7t = 63
----------------
-9c - 15t = - 117 (result of multiplying by -3)
9c + 7t = 63
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- 8t = - 54
t = -54/-8
t = 6.75 <=== tables are 6.75

3c + 5t = 39
3c + 5(6.75) = 39
3c + 33.75 = 39
3c = 39 - 33.75
3c = 5.25
c = 5.25/3
c = 1.75 <=== 1.75 per chair
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4 years ago
How many cups did eddy order
IrinaK [193]

Answer:

9.

Step-by-step explanation:

334÷38=8.79, rounded up to 9.

4 0
3 years ago
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MatroZZZ [7]

Answer:

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Step-by-step explanation:

Hope this helps : )

8 0
3 years ago
What are the roots of the polynomial equation x cubed minus 5 x + 5 = 2 x squared minus 5?
Dennis_Churaev [7]

Roots of the polynomial x^3-5x+5=2x^2-5 are x=\sqrt{5},x=-\sqrt{5}\,\,and\,\,x=2

Step-by-step explanation:

We need to find roots of the polynomial equation: x^3-5x+5=2x^2-5

Solving the polynomial to find roots:

x^3-5x+5=2x^2-5\\Rearranging:\\x^3-5x+5-2x^2+5=0\\x^3-2x^2-5x+10=0

Finding factors by grouping:

(x^3-2x^2)(-5x+10)=0\\Finding\,\,common\,\,terms:\\x^2(x-2)-5(x-2)=0\\(x^2-5)(x-2)=0\\x^2-5=0\,\,and\,\,x-2=0\\x^2=5\,\,and\,\,x=2\\x=\pm \sqrt{5}\,\,and\,\,x=2

So, roots of the polynomial x^3-5x+5=2x^2-5 are x=\sqrt{5},x=-\sqrt{5}\,\,and\,\,x=2

Keywords: Roots of Polynomial

Learn more about Roots of Polynomial at:

  • brainly.com/question/2568692
  • brainly.com/question/1464739
  • brainly.com/question/1332667
  • brainly.com/question/2364381

#learnwithBrainly

8 0
3 years ago
Choose the correct description of the graph of the compound inequality x − 1 9 or 2x 24.
BigorU [14]
X-19 because 2x 24 makes no sense. When you graph something you have to have an x and a y while the would be up 1 over 1 and you start at -19
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3 years ago
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