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3 years ago

Find the solution of this system of equations -2x+3y=-3 and -2x-5y=-75

Mathematics

1 answer:

julsineya [31]3 years ago

7 0

Answer:

please see the attached picture for full solution..

Hope it helps...

Good luck on your assignment...

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Where are the black dots located at ?!!

butalik [34]

Answer:

(1,-2) and (6, 3)

Step-by-step explanation:

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3 years ago

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Which shows the expressions rewritten with the least common denominator?

baherus [9]

Answer:

D. (14x-4)/(8x^2) and (x^2-x)/(8x^2)

Step-by-step explanation:

The least common denominator will be 8x^2, the product of 2 and x to the highest of their powers in either of the denominators.

$\left\{\dfrac{7x-2}{4x^2},\ \dfrac{x-1}{8x}\right\}=\left\{\dfrac{7x-2}{4x^2}\cdot\dfrac{2}{2},\ \dfrac{x-1}{8x}\cdot\dfrac{x}{x}\right\}\\\\=\left\{\dfrac{14x-4}{8x^2},\ \dfrac{x^2-x}{8x^2}\right\}$

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2 years ago

Solve (x+y) if x=-1/2 and y=-3

bixtya [17]

Answer:

$-3\frac{1}{2}$

Step-by-step explanation:

Solve

$(x+y)$

For x=-1/2 and y=-3

substitute the value of x and the value of y in the expression above

$x+y=(-\frac{1}{2})+(-3)$

Remember that

$(+1)(-1)=-1$

$x+y=-\frac{1}{2}-3=\frac{-1-6}{2}=-\frac{7}{2}$

Convert to mixed number

$-\frac{7}{2}=-\frac{6}{2}-\frac{1}{2}=-3\frac{1}{2}$

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3 years ago

What is the value of x in the equation 3X minus 4Y equals 65, when Y equals four

Vika [28.1K]

Answer:

Step-by-step explanation:

3x-4y=65

3x=65+4y

x=(65+4y)/3, when y=4

x=(65+4*4)/3

x=(65+16)/3

x=81/3

x=27

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3 years ago

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A scalene triangle is _______ isosceles.<br><br> - Sometimes<br> - Always<br> - Never

cricket20 [7]

Answer:

never

Step-by-step explanation:

Scalene triangles have no sides equal.

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3 years ago