Add the equations 4x−4y =-2 and −9x4y=-3

Answer:

Perimeter of ABCD - Perimeter of PQRS = 4x + 2

Step-by-step explanation:

i. For rectangle ABCD;

length, l = 2x -3

width, w = 4x + 5

Perimeter of a rectangle = 2(l + w)

Perimeter of ABCD = 2((2x -3) + (4x + 5))

                                = 2(2x -3 + 4x + 5)

                                = 2(6x + 2)

Perimeter of ABCD = 12x + 4

ii. For rectangle PQRS;

length, l = x - 1

width, w = 3x + 2

Perimeter of a rectangle = 2(l + w)

Perimeter of PQRS = 2((x - 1) + (3x + 2))

                                = 2(x - 1 + 3x + 2)

                                = 2(4x + 1)

Perimeter of PQRS = 8x + 2

So that,

Perimeter of ABCD - Perimeter of PQRS = (12x + 4) - (8x + 2)

                                          = 12x + 4 - 8x - 2

                                          = 4x + 2

Perimeter of ABCD - Perimeter of PQRS = 4x + 2

Answer:

To increase an amount by 7%, you would want to use 1.07 as the multiplier. To decrease it, you would use 0.93

Step-by-step explanation:

Answer:

yes all the time

Step-by-step explanation:

Answer:

Option D

Step-by-step explanation:

Probability of an event = [tex]\frac{\text{Favorable outcome}}{\text{Total number of outcomes}}[/tex]

Favorable outcome = sum of numbers is 6 on rolling two cubes

                                 = (5 + 1), (4 + 2), (3 + 3), (2 + 4), (1 + 5)

Therefore, number of rolls that she gets a sum of 6 = 5

Total number of outcomes = 6 × 6 = 36

Therefore, probability that she rolls a sum equal to 6 = [tex]\frac{5}{36}[/tex]

Therefore, Option D will be the answer.

Answer:

90

Step-by-step explanation:

Answer:

esgnjmmt424

Step-by-step explanation:

Answer: 107 students

Step-by-step explanation: 115 minus 8 is 107

Answer:

132

Step-by-step explanation:

becca have 115-8= 107 so 107+25= 132

Answer:

c=33/2

Step-by-step explanation:

25+8=2c

33=2c

33/2=c

9514 1404 393

Answer:

  7 pieces

Step-by-step explanation:

In the 8 days between day 10 and day 18, Andre's candy decreased by 115-43 = 72 pieces. In the next 4 days (half the time of that decrease), we expect it to decrease by half that amount, so 72/2 = 36 pieces.

After 22 days, the amount remaining will be 43 -36 = 7 pieces.

Answer:

[tex](c)\ \frac{6}{5}[/tex]

Step-by-step explanation:

The question is incomplete as it has missing options.

See attachment for complete question and options..

From the attachment, we have:

[tex](a)\ \frac{-7}{9}[/tex]

[tex](b)\ \frac{-8}{2}[/tex]

[tex](c)\ \frac{6}{5}[/tex]

[tex](d)\ \frac{3}{-2}[/tex]

All but 6/5 are negative numbers.

This is so because:

[tex](a)\ \frac{-7}{9}[/tex] has a negative sign at the numerator

[tex](b)\ \frac{-8}{2}[/tex] has a negative sign at the numerator

[tex](d)\ \frac{3}{-2}[/tex]  has a negative sign at the denominator

Only [tex](c)\ \frac{6}{5}[/tex] has positive integers at the numerator and denominator.

Answer:

✔️(20, 16)

✔️(15, 12) = 15 pounds of beans cost $12

Step-by-step explanation:

✔️20 pounds of beans is represented by the ordered pair, (20, 16). On the graph, when beans (x) = 20 pounds, cost (y) = $16.

✔️Also, the ordered pair (15, 12) means that 15 pounds of beans cost $12. From the graph, when beans (x) = 15 pounds, cost (y) = $12.

Answer:

Step-by-step explanation:

980

Answer:

C

Step-by-step explanation:

The width of the screen is approximately 15.65 or √(245) inches. The correct answer would be an option (C).

Pythagoras's theorem states that in a right-angled triangle, the square of one side is equal to the sum of the squares of the other two sides.

The height of the screen (AB) is 14 inches, and the diagonal distance (AC) is 21 inches.

AB² + BC² = AC²

We can use these values to solve for the width of the screen (x):

x² = 21² - 14²

x²  = 441 - 196

x²  = 245

To solve for x, we can take the square root of both sides of the equation:

x = √(245)

x ≈ 15.65

Thus, the width of the screen is about 15.65 or √(245) inches.

Learn more about Pythagoras's theorem here:

brainly.com/question/343682

#SPJ2

Answer:

C. [tex]x = 3\cdot (y-3)^{2}+1[/tex]

Step-by-step explanation:

From Analytical Geometry, the equation of a parabola with axis of symmetry parallel to the x-axis and centered in [tex]V(x,y) = (h,k)[/tex] is described below:

[tex]x-h = C\cdot (y-k)^{2}[/tex] (1)

Where:

[tex]x[/tex] - Independent variable.

[tex]y[/tex] - Dependent variable.

[tex]h[/tex], [tex]k[/tex] - Coordinates of the vertex.

[tex]C[/tex] - Vertex factor.

If we know that [tex]h = 1[/tex] and [tex]k = 3[/tex], then the equation of the parabola is:

[tex]x-1 = C\cdot (y-3)^{2}[/tex]

[tex]x = C\cdot (y-3)^{2}+1[/tex]

Therefore, the option that could be its equation is C.

Answer:

-360

Step-by-step explanation:

Given:

[tex] a = \frac{180(n - 2)}{n} [/tex]

Solve for n. Multiply both sides by n

[tex] a*n = \frac{180(n - 2)}{n}*n [/tex]

[tex] an = 180(n - 2) [/tex]

Apply the distributive property

[tex] an = 180n - 360 [/tex]

Subtract 180n from both sides

[tex] an - 180n = - 360 [/tex]

Factor out n

[tex] n(a - 180) = - 360 [/tex]

Divide both sides by (a - 180)

[tex] n = \frac{-360}{a - 180} [/tex]

Therefore, the numerator of the fraction that n is equal to is -360

Answer:

y=200+3x

Step-by-step explanation:

I hope that this helps you

Answer:

9/7

Step-by-step explanation:

Answer:

Step-by-step explanation:

Wow

Answer:

x= 3 5 + 1 5 √149 or x= 3 5 + −1 5 √149

Answer:

It is C

Step-by-step explanation:

Just Finished the test and that's the answer

Answer:

First, I go by finding x and r.

After that, put the numbers (ie. x= # and r=#) into the equations. Check it by finding L.H.S and R.H.S. (ie. left hand side and right hand side)

If you are still confused, comment down and I'll try to provide better explanation!

Answer:

x < 1.39285714286

Step-by-step explanation:

5(5x+2x/5x8)<78

             x5      x5

5(5x+2x(8))<390

             /8    /8

5(5x+2x)<48.75

5(7x)<48.75

/5         /5

7x < 9.75

/7       /7

x < 1.39285714286