3. 11x-7y=-14. X-2y=-4

Answers

Answer 1

Answer: 11x -7y= -14 (1)
x -2y= -4 (2)

Multiply (2) by 11, we have:
11x -22y= -44 (3)

Take (1)-(3), we have:
(11x-11x)+ (-7y-(-22y))= -14-(-44)
⇒ -7y+22y= -14+44
⇒ 15y= 30
⇒ y= 30/15
⇒ y= 2

x= -4+ 2y= -4+ 2*2= 0

The final answer is x=0, y=2~

Answer 2

Answer: The two given equations are
11x - 7y = - 14
x - 2y = -4
Now let us take the second equation for finding the value of x first
x - 2y = -4
x = 2y - 4
Now we have to put the value of x in the first equation
11x - 7y = - 14
11(2y - 4) - 7y = -14
22y - 44 - 7y = -14
15y = 44 - 14
15y = 30
y = 30/15
= 2
Now let us put the value of y in the second equation
x - 2y = -4
x - 2(2) = -4
x - 4 = -4
x = -4 + 4
= 0
So the value of x is 0 and the value of y is 2.

Related Questions

How much would you pay in move-in costs for the two-bedroom Hometown Apartment if you pay first and last month's rent, a $185 security deposit, and a 30% fee to the rental agent? Round to the nearest dollar.~2 bedroom hometown: $515 plus utilities A. $1,515 B. $1,254 C. $866 D. $1,370 x
1. Complete the tables of values below for graphing the secant and cotangent functions. You can type “U” for an undefined value. Use exact values with fractions and square roots, not the decimal approximations. For example, use 3/2 rather than 0.866 (pictures attached) 2. Graph the secant graph for 0 ≤ x ≤ 2π. Graph the cotangent graph for 0 ≤ x ≤ 2π. (don't need these pictures I have them) 3. Indicate whether each of the three reciprocal functions (cosecant, secant, and cotangent) is a periodic function. If so, state the period of each. 4. List the domain and range for the secant and cotangent functions. (Use "pi" for π.) 5. Compare the graphs of the cosecant and secant functions. How are they different? How are they similar?
Which best describes the strength of a model with an r-value of 0.29?a weak positive correlation a strong positive correlation a weak negative correlation a strong negative correlation
A system of equations has no solution. If y = 8x + 7 is one of the equations, which could be the other equation?
If the half-life of a unstable isotope is 10,00 years and only 1/8 of the radioactive parent remains how old is the sample? A.10,000 B. 20,000 C. 30,000 D. 40,000

How do i solve this A=1/2bh for b

Answers

A = $(1)/(2)$ bh Multiply both sides by 2 to cancel out the fraction
2A = bh Divide both sides by h
$(2A)/(h)$ = b Switch the sides to make it easier to read
b = $(2A)/(h)$

If f(x)=1/2 x-6 what is the equation for f–1(x)? A. f–1(x) = 2x + 6

B. f–1(x) = 2x – 6

C. f–1(x) = 2(x + 6)

D. f–1(x) = 2(x – 6)

Answers

Answer:

Option C $f^(-1)(x)=2(x+6)$

Step-by-step explanation:

we have that

$f(x)=(1)/(2)x-6$

Let

$y=f(x)$

$y=(1)/(2)x-6$

Exchange the variables x for y and y for x

$x=(1)/(2)y-6$

Isolate the variable y

$x+6=(1)/(2)y$

$y=2(x+6)$

Let

$f^(-1)(x)=y$

$f^(-1)(x)=2(x+6)$

I hope this helps you

What is the approximate value of the function at x = -3?

Answers

The answer is that u have to see what = 3 equals three so find that out and u have ur answer

Solve for p3(p + q) = p
A. q = -2/3p
B. q = -3/2p
C. p = -2/3q
D. p = -3/2q

Answers

it’s A! hope this helps you out!

Find the equation of the line that passes through the midpoint of the line segment between P1(2, 4) and P2(−4, 2) and has slope 7. Let y be the dependent variable and let x be the independent variable.

Answers

The midpoint of the points is the average of the x-coordinate and y-coordinate. So in this case, the midpoint would be (-1, 3). So equations can be written in the form y=mx+b. Since the slope is 7, the m value is also 7. Substituting the point (-1, 3) as x and y makes the equation 3=7(-1)+b. So after isolating the b, the value of b is not 10. So the final equation is y=7x+10

What’s the slope? And can you please explain I don’t get it

Answers

As we can see, the line crosses the x-axis at (-2, 0). If we climb three units up from -2 and then go one unit to the right, we arrive at the next point on the line.

Since we climbed three points and went to the right one point, our slope = 3/1. But, we can reduce that.

Slope = 3/1 = 3

Answer:

The slope is 3.

Step-by-step explanation:

The way to find the slope is to find how many blocks/number it went up and to the side. The number of blocks it went up on the y-axis, in this case, is 3 and it went along the x-axis once. In order to actually find the slope, you need to put the y over the x. So, 3/1 is equal to three, so the slope of this line is 3

Other Questions

Solve the equation: 12y = 132. A. y = 11B. y = 11/12C. y = 144D. y = 1/11C

Use long division or synthetic division to find the quotient of

A pyramid has a square base with sides 8" and a slant height of 5". Total Area =

We are given with height= 9 ft. Length=10 ft. Wall Brackets: 48-inch cost $12.95 68-inch cost $16.95 Distance from brackets from ends= 1 foot maximum . What is the total cost of the brackets, before tax?