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Naya [18.7K]
3 years ago
5

So how do you get the right equal fration?

Mathematics
1 answer:
dolphi86 [110]3 years ago
7 0
I can't figure out the answer but I have some information that could help. if you divide the ouces by pounds they all equal 16.
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1/(x+1) - 1/(x+2) = 1/2
katen-ka-za [31]
Please include the instructions; I assume your job is to find the value of x.

<span>1/(x+1) - 1/(x+2) = 1/2 would better be written as
   
     1            1            1
</span><span>-------- - ------------ = ----
  x+1           x+2        2

Identify the LCD.  It is (x+1)(x+2)(2).  Mult. all 3 terms of the equation by this LCD:

2(x+2) - 2(x+1) = 2(x+1)(x+2)

We can factor out the 2 from all terms:

x+2 - x - 1 = x^2 + 3x + 2

Let's move all terms from the left to the right side:

 0              = x^2 + 3x + 2 - x - 2 + x + 1

Then x^2 + 3x + 1 = 0.  This is a quadratic with a=1, b=3 and c=1.

What is x?

       -3 plus or minus sqrt( 9-4(1)(1) )        -3 plus or minus sqrt(5)
x = --------------------------------------------- = ---------------------------------
                             2                                                    2

I rather expected to obtain an integer value for x.


Why don't you give this problem a try yourself?  Suggestion:  First mult. every term by 2.  This will give you:

   2          2
------- - ------- = 1   and this may be slightly easier to work with.  Please
 x+1      x+2          give it a try:  try to find x that satisfies this equation. 
                              Important:  note that x cannot equal either -1 or -2.


</span>
8 0
3 years ago
What is the answer to -2/3D=8?
I am Lyosha [343]

Answer:

D=-12

Step-by-step explanation:

-2/3D=8

=(Multiply each side by 3/-2)

3/-2*-2/3D=8*3/-2

=D=-12

6 0
3 years ago
Round your answer to the nearest hundredth
Anton [14]

Answer:

9.49

Step-by-step explanation:

Using the Pythagorean Theorem, we know a²+b²=c².

So 3²+9²=(BA)²

9+81=(BA)²

90=(BA)²

From this, we know BA=√90

BA=9.486

Rounding to the nearest hundredth, this is 9.49

Please consider a brainliest! Thank you!

7 0
2 years ago
NEED HELP ASAP!!Approximately 10% of Wunderlich's population is left-handed. If the school has a population of 1,200 students, h
Alexxx [7]

Answer:

B. 120

Step-by-step explanation:

10% = \frac{10}{100}

No. of left-handed students = \frac{10}{100} × 1,200

                                              = 120

8 0
3 years ago
Read 2 more answers
Brenna saved 36% on a $15 pair of sunglasses. Choose the correct expression to find 36% of $15.
zhuklara [117]

Answer:

$5.40

Step-by-step explanation:

Take 15$ and multiply it by 36% or 0.36 and you get $5.40.


Hoped this helped, have a nice day!


4 0
3 years ago
Read 2 more answers
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