All categories

3 years ago

Can someone please help me I've been stuck on this for so long

Mathematics

2 answers:

Vilka [71]3 years ago

8 0

Answer:

x = -3, y=2

Step-by-step explanation:

x+3y =3

3y -2x =12

Solve the first equation for x

x = 3-3y

Substitute this into the second equation

3y -2(3-3y) =12

Distribute

3y -6 +6y =12

Combine like terms

9y -6 =12

Add 6 to each side

9y-6+6 =12+6

9y =18

Divide each side by 9

9y/9 =18/9

y = 2

Now find x

x = 3 -3y

x = 3-3(2)

x = 3-6

x = -3

Ne4ueva [31]3 years ago

6 0

Answer:

x = -3 y = 2

Step-by-step explanation:

x + 3y = 3

2x - 3y = -12

3x = -9

x = -3

You might be interested in

Explain two ways to find the Gcf of 36 and 27

Solnce55 [7]

To find the gcf you have to wright down the factors of both the numbers, all of them. Then, find the one that is the greatest number, but both 36 and 27 have, which would be 9

5 0

3 years ago

Layla has a points card for a movie theater.

aniked [119]

Answer:

Step-by-step explanation:

3 0

2 years ago

Suppose lines EF and GH are reflected over the line Y equals X to form the lines JK and LM which statement would be true about t

katrin [286]

Answer:

A) JK and LM will be parallel to each other.

Step-by-step explanation:

On reflection on $y=x$ line the x co-ordinate changes with y co-ordinate and y co-ordinate changes with x co-ordinate

$(x,y)\rightarrow (y,x)$

Points on line EF

$(0,6) , (-5,-2)$

On reflection of this line on $y=x$ the new points we get for line JK are

$(6,0),(-2,-5)$

Points on line GH

$(-4,9),(-9,1)$

On reflection on y=x line the new points we get for line LM are

$(9,-4),(1,-9)$

Slope of line JK

$m=\frac{y_2-y_1}{x2-x1}\\m=\frac{(-5)-0}{(-2)-6} \\m=\frac{-5}{-8}=\frac{5}{8}$

Slope of line LM

$m=\frac{y_2-y_1}{x2-x1}\\m=\frac{(-9)-(-4)}{1-9} \\m=\frac{-9+4}{-8}=\frac{-5}{-8}\\m=\frac{5}{8}$

For two line to be parallel, their slopes will be same.

$m_{JK} =\frac{5}{8} , m_{LM}=\frac{5}{8}$

Since slopes of lines JK and LM are same therefore we can say that these are parallel to each other.

5 0

3 years ago

Help me and this question please please

disa [49]

Answer:

the things wont load whats the question?

Step-by-step explanation:

8 0

3 years ago

Name a capital letter that appears to have parallel lines

Ierofanga [76]

H is the answer........

8 0

3 years ago

Read 2 more answers

Can someone please help me I've been stuck on this for so long​

Can someone please help me I've been stuck on this for so long