1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Viktor [21]
2 years ago
13

I need help with this question... the topic is solving linear systems of equations using elimination (addition). Please give exp

lanation so I can understand how to do it.

Mathematics
1 answer:
gregori [183]2 years ago
7 0

Answer:

x= -1

y=2

Step-by-step explanation:

6x+5y=4

6x-7y=-20

Subtract

You might be interested in
The equation of line EF is y = 2x + 1. Write an equation of a line parallel to line EF in slope-intercept form that contains poi
77julia77 [94]

Answer:  The answer is (b) y=2x+2.


Step-by-step explanation:  The equation of a straight line in slope-intercept form is given by

y=mx+c, where, 'm' is the slope and 'c' is the y-intercept of the straight line.

The equation of the given line EF is

y=2x+1.

Here, slope, m=2 and y-intercept, c=1.

Since our new line is parallel to the given line, so the slope of the new line=m=2.

So, let the equation of the new line be

y=mx+d\\\\\Rightarrow y=2x+d.

Now, since the line passes through the point (0,2), so

2=2\times 0+d\\\Rightarrow d=2.

Thus, the equation of the new line parallel to line EF will be

y=2x+2.

The correct option is (b).

3 0
3 years ago
Read 2 more answers
What is 1/2x1/2 in fractions?
Semmy [17]
I think it is 2/4 but I might be wrong
4 0
3 years ago
Read 2 more answers
I NEED HELP ON THIS PLSSS , ILL MARK BRAINLIEST!!
Nataly_w [17]

Answer:

134.0 in^3

Step-by-step explanation:

Volume = (radius^2 * pi * height)/3 = (4^2 * pi * 8)/3 = 134.0 in^3

6 0
2 years ago
What is the value of x<br><br> A 19<br> B 22<br> C 67<br> D71
Novay_Z [31]

Answer:

Step-by-step explanation:

(2x+4)° + 42° = 180°

x = 67°

4 0
3 years ago
Triangle J is shown below. James drew a scaled version of Triangle J using a scale factor of 4 and labeled it
Novay_Z [31]

Answer:

The area of triangle K is 16 times greater than the area of triangle J

Step-by-step explanation:

we know that

If Triangle K is a scaled version of Triangle J

then

Triangle K and Triangle J are similar

If two triangles are similar, then the ratio of its areas is equal to the scale factor squared

Let

z -----> the scale factor

Ak ------> the area of triangle K

Aj -----> the area of triangle J

so

z^{2}=\frac{Ak}{Aj}

we have

z=4

substitute

4^{2}=\frac{Ak}{Aj}

16=\frac{Ak}{Aj}

Ak=16Aj

therefore

The area of triangle K is 16 times greater than the area of triangle J

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is the image of point (-5,-7) for mapping (x,y) , (x-4, y-4)
    13·1 answer
  • Irrational numbers definition
    13·1 answer
  • Prove that
    5·1 answer
  • The area of a parallelogram increased from 40 to 128 square centimeters what is area percentage?
    13·1 answer
  • The ABCD Electronics Company has just manufactured 7000 write-rewrite CDs, and 160 are defective. If 5 of these CDs are randomly
    12·1 answer
  • In △XYZ , XZ=9 , YZ=4 , and XY=7 .
    6·1 answer
  • Is it True or False?
    15·1 answer
  • How do i solve 2/7v-1/7+14=20
    10·2 answers
  • Can someone pls pls help meee
    9·1 answer
  • PLSSS HELP IF YOU TURLY KNOW THISS
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!