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3 years ago

I am so lost help me

Mathematics

2 answers:

Vinil7 [7]3 years ago

6 0

The answer is 1,500 mL because 1 liter is in 1000 mL.

lilavasa [31]3 years ago

3 0

1 Liter = 1000 mL

so....

1.5 Liter = 1500 mL

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Which has the bigger surface area? Jamal's, which is 3 by 3 by 4 ft, or Andy's, which is 4 by 2 by 5 ft and why?

oksano4ka [1.4K]

Jamal-3 x 3 = 9 x 4 = 36

Andy- 4 x 2 = 8 x 5 = 45

Andy's surface area is bigger.

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3 years ago

What is the solution to the system of equations?<br> y = -5x + 3<br> y = 1

Gekata [30.6K]

9514 1404 393

Answer:

(x, y) = (2/5, 1)

Step-by-step explanation:

Substitute for y and solve for x.

1 = -5x +3

-2 = -5x . . . . . . subtract 3

2/5 = x . . . . . . divide by -5

The solution is (x, y) = (2/5, 1).

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2 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>

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2 years ago

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2 years ago

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2 years ago