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frutty [35]
3 years ago
12

Solve for x 6.58-8.36x=3.98x-27.33 Round to nearest hundred

Mathematics
2 answers:
ololo11 [35]3 years ago
7 0

Answer:

6.58-8.36x=3.98x-27.33

Collecting like terms

6.58+27.33=3.98x+8.36x

33.91=12.34x

33.91/12.34=12.34/12.34

x=2.75

Naddik [55]3 years ago
5 0

Answer:

x=2.75

Step-by-step explanation:

subtract 3.98x from both sides

6.58-8.36x=3.98x-27.33

6.58-3.98x-8.36x=27.33

subtract 6.58 from both sides

-3.98x-8.36x=27.33-6.58

add like terms:

-12.34x=-33.91

divide both sides by -12.34

x=3391/1234

x=2.75

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Replacing the data we have:

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Multiply.
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Joseph built a sandbox in his backyard that is 2 meters wide, 4 meters long, and 2 meters tall. What volume of sand does he need
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2 years ago
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Harman [31]

Hello from MrBillDoesMath!

Answer:   500

Discussion:

The idea is to represent p(x)  with a squared component...

3 + 4x - 4x^2 =

3  - ( 4x^2 - 4x) =                  

Add and subtract 1:

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4 - (2x-1)^2


To maximize profit we need to minimize the term (2x-1)^2  as it is always positive (or zero) and subtracts from the number 4.  The minimum of (2x -1)^2 occurs when 2x -1 = 0 or x = 1/2. Since x is the number of speakers in thousands, (1/2)x = 500 speakers.

Note: this problem can be more easily addressed in a Calculus course by taking the first derivative of p(x), setting it to zero, and solving for x (which yields x = 1/2 too)




Thank you,

MrB

4 0
3 years ago
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