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3 years ago

Solve: 4x-4=2(×-1)-4y+2y. show some work please:))

Mathematics

1 answer:

Papessa [141]3 years ago

7 0

your answer is x = -7+1/2

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Write the equation of a line that passes through the given point and is parallel to the given line.

monitta

Answer:

y=2x+5
y= 1/3x -4

Step-by-step explanation:

$(1,-3)=(x_1,y_1)\\\\y =2x+2\\\\m = 2$

Substitute values into point-slope form

$y-y_1=m(x-x_1)\\\\y -3 =2(x-(-1))\\\\y-3=2(x+1)\\\\y-3=2x+2\\\\y=2x+2+3\\\\y=2x+5$

$(18,2) =(x_1,y_1)\\\\3y-x=-12$

Arrange equation in slope-intercept form (y=mx+b)and derive slope

$3y =x-12\\\\\frac{3y}{3} =\frac{1x}{3} -\frac{12}{3} \\\\y = \frac{1}{3} x -4\\\\m = \frac{1}{3}$

Substitute values into point-slope form

$y-y_1=m(x-x_1)\\\\\\y-2=\frac{1}{3} (x-18)\\\\y-2=\frac{1}{3} x -6\\\\y=\frac{1}{3} x -6+2\\\\y=\frac{1}{3} x -4$

5 0

3 years ago

10% of ? is 20 I really need help bad

DIA [1.3K]

Answer:

20 is 10% of 200

Step-by-step explanation:

We have, 10% × x = 20

or,

100

× x = 20

Multiplying both sides by 100 and dividing both sides by 10,

we have x = 20 ×

100

x = 200

If you are using a calculator, simply enter 20×100÷10, which will give you the answer.

6 0

3 years ago

Read 2 more answers

Amanda [17]

Answer: The answer is A. linear, weak

Step-by-step explanation: This is the correct answer on Edge

4 0

4 years ago

What is the solution to the system of equations? 3x + 10y = -47 5x- 7y = 40 Please and thank u

anastassius [24]

Answer:

x=1, y=-5

Step-by-step explanation:

Given equations are:

$3x+10y=-47\ Eqn\ 1\\and\\5x-7y=40\ Eqn\ 2$

In order to solve the equation

Multiplying Eqn 1 by 5 and eqn 2 by 3 and subtracting them

So,

Eqn 1 becomes

15x+50y=-235

Eqn 2 becomes

15x-21y=120

Subtracting 2 from a

15x+50y - (15x-21y) = -235-120

15x+50y-15x + 21y = -355

71y = -355

y = -355/71

y =-5

Putting y= -5 in eqn 1

3x+10(-5) = -47

3x -50 = -47

3x = -47+50

3x = 3

x = 3/3

x = 1

Hence the solution is:

x=1, y=-5

5 0

3 years ago

Read 2 more answers

4 1/5 + 2 5/6 = ? 6 1/6 6 1/30 7 1/4 7 1/30

grigory [225]

Answer:

7 1/30

Step-by-step explanation:

4 1/5 + 2 5/6

Get a common denominator of 30

4 1/4 = 4 1/5*6/6 = 4 6/30

2 5/6 *5/5 = 2 25/30

4 6/30 + 2 25/30

6 31/30

Rewriting

6 30/30 + 1/30

6 + 1 + 1/30

7 1/30

6 0

3 years ago

Read 2 more answers

Solve: 4x-4=2(×-1)-4y+2y. show some work please:))​

Solve: 4x-4=2(×-1)-4y+2y. show some work please:))