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mamaluj [8]
3 years ago
12

A ​used-boat dealership buys a boat for ​$2900 and then sells it for ​$4500. What is the percent​ increase?

Mathematics
1 answer:
Alenkinab [10]3 years ago
3 0

Alright, so we have the difference = 4500-2800=1700. To find the percent increase, we do 1700/2800=around 0.61 = around 61% percent. Hope I helped! ☺☼

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MrRa [10]
It could be written like 400 or four hundred.
8 0
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20 how much metal is needed to smelt a cubical metal box with outer side 12 inches long if the thickness of its walls should be
guajiro [1.7K]
The volume of the metal box if the box was completely solid (V1), is:
 
 V1=(12 inches)³
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 W=12 inches-(3 inchesx2)
 W=6 inches
 
 Then, the volumen of the no solid metal box is:
 
 V2=(6 inches)³
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6 0
3 years ago
Please factor and find the zeros of each relation (18 marks)
AlekseyPX

Answer:

C. \ \frac{-2}{3} , \ \frac{-4}{5}\\\\D. \ -2, \ -4

Step-by-step explanation:

C.

30x^2 + 44x +16 = 0\\\\2(15x^2 + 22 + 8) = 0\\\\2(15x^2 + 12x + 10x + 8) = 0\\\\2(3x(5x + 4)+2(5x + 4))=0\\\\2((3x + 2)(5x + 4)) = 0\\\\Zeroes : 3x + 2 = 0 => x = \frac{-2}{3}\\

             5x+ 4 = 0 => x = \frac{-4}{5}

D.

10x^2 + 60x +80 = 0\\\\10(x^2 + 6x + 8)= 0\\\\10(x^2 + 4x + 2x + 8)=0\\\\10(x(x+4)+2(x+4))=0\\\\10((x+2)(x+4))=0\\\\Zeroes : x + 2 = 0 =>x = -2

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3 years ago
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Artemon [7]

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Area = 200 cm^2

Side = √200

Side = 10√2 (Exact length)

or 14.142 cm's ( round the decimal answer as needed.)

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3 years ago
What is the range of this?
jok3333 [9.3K]

Answer: y ≥ -2    Interval Notation: [-2, ∞)

<u>Step-by-step explanation:</u>

If the domain is x ≥ 0, then plug x=0 into the given equation to find the y ≥ value.

Range: y ≥ 2(0) - 2

            y ≥ 0 - 2

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6 0
3 years ago
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