Write and simplify the equation you would use to solve the problem below.

Mathematics

2 answers:

Zielflug [23.3K]3 years ago

6 0

The answer is C $14 dollars

timofeeve [1]3 years ago

5 0

No one seems to realize what the question is really asking. The answer is D.

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What is 3.75 as a mixed number in its simplest form

Fittoniya [83]

3 $\frac{3}{4}$

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4 years ago

8/x-5 - 9/x-4 = 5/x^2-9x+20

adelina 88 [10]

If you're using the app, try seeing this answer through your browser: brainly.com/question/2752942

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Solve the equation:

$\mathsf{\dfrac{8}{x-5}-\dfrac{9}{x-4}=\dfrac{5}{x^2-9x+20}\qquad\qquad(x\ne 5~and~x\ne 4)}$

Reduce the fractions at the left side so that they have the same denominator:

$\mathsf{\dfrac{8(x-4)}{(x-5)(x-4)}-\dfrac{9(x-5)}{(x-4)(x-5)}=\dfrac{5}{x^2-9x+20}}\\\\\\
\mathsf{\dfrac{8x-32}{x^2-4x-5x+20}-\dfrac{9x-45}{x^2-4x-5x+20}=\dfrac{5}{x^2-9x+20}}\\\\\\
\mathsf{\dfrac{8x-32}{x^2-9x+20}-\dfrac{9x-45}{x^2-9x+20}=\dfrac{5}{x^2-9x+20}}\\\\\\
\mathsf{\dfrac{8x-32-(9x-45)}{x^2-9x+20}=\dfrac{5}{x^2-9x+20}}$

Numerators must be equal:

$\mathsf{8x-32-(9x-45)=5}\\\\
\mathsf{8x-32-9x+45=5}\\\\
\mathsf{8x-9x=5+32-45}\\\\
\mathsf{-x=-8}\\\\
\mathsf{x=8}\quad\longleftarrow\quad\textsf{this is the solution.}$

I hope this helps. =)

Tags: <em>rational equation fraction solution algebra</em>

7 0

3 years ago

Find the area of the

Alex73 [517]

162 m^2

you can make a triangle in the corner with legs length s/2 and the angles are 45 degrees. in a 45 45 90 triangle, the legs are h/sqrt(2) where h is the hypotenuse. this means that s/2=9/2 sqrt(2), s=9 sqrt(2)

and s^2=162

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3 years ago

-17 + 5x = 5(x – 5) + 8<br><br>What is x?

Anvisha [2.4K]

Answer:

infinite solutions

Step-by-step explanation:

cancel both sides and you get infinite solutions

7 0

3 years ago

Sovle number 5 pls and thank you

mariarad [96]

Answer:

6m^4 / n

Step-by-step explanation:

-12m^12 / 2m^8 n

= 6m^4 / n

3 0

3 years ago

Read 2 more answers