Solve the system of equations x+y= -13 and 4x + 6y = -72 by combining the
equations.

Answer:

x equals to -1

Step-by-step explanation:

x-4x :3

-3x : 3

so x: -1

Answer:

x +5

Step-by-step explanation:

5x-2+3x+4+2x+9

5x-2x=3x

3x-3x=x

-2+2=0

0+4=4

4-9 =5

Answer:

11x + 8 +8x +12 =27  (drop the parenthesis, there's no actual need for them)

19x +20 =27 (i combined like terms and then subtracted 20 from both sides)

19x = 7  (divide both sides by 19 to get x alone)

x= 7/19 or 0.36842105 (the answer)

Step-by-step explanation:

Answer:C

Step-by-step explanation: You want to add up all the marbles, and then take the red marbles and divide by all the marbles 7/20

Answer:

Volume of a cylinder, V = πr^2h

but r= d/2

therefore, Vol = π(d/2)^2h

from the parameters given,

Vol = π(18/2)^2h

=81πh

Answer:

Here u go! :)

Step-by-step explanation:

10:20, 15:25, 20:30 etc..

Hope this helps you! xx

Answer:

10:20, 15:30, 20:40, 25:50

Step-by-step explanation:

Answer:

B.

Hope this helps!

Answer:

always

Step-by-step explanation:

no matter what the angles of a rectangle will be 90 degrees so the answer is always

Answer:

Step-by-step explanation:

Consecutive angles are equal only when dealing with a square or a rectangle. All other 4 sided figures do not have this property.

So the answer is sometimes.

Answer:

A: Quadrant IV

B. Quadrant III

Step-by-step explanation:

Quadrant IV is the bottom right

Quadrant III is the bottom left

prolly D

..............................

The distance between the point JM will be 4.81 units.

In science and math, the centroid of a planar figure or firm figure, also known as the point of intersection or center of the figure, is the mean absolute position of all of the other points on the subject's surface.

The centroid of the triangle is given as,

(x, y) = [(x₁ + x₂ + x₃) / 3, (y₁ + y₂ + y₃) / 3]

Use the coordinates J(7, 8), K(1, 2) and L(5, 2) for △JKL. Then the centroid for △JKL is at point M is given as,

(x, y) = [(7 + 1 + 5) / 3, (8 + 2 + 2) / 3]

(x, y) = (13/3, 12/3)

(x, y) = (13/3, 4)

Then the distance between the point JM is calculated as,

D² = (13/3 - 7)² + (4 - 8)²

D² = 7.1111 + 16

D² = 23.11

D = √23.11

D = 4.81 units

The distance between the point JM will be 4.81 units.

More about the centroid of the triangle link is given below.

https://brainly.com/question/10708357

#SPJ2

Answer:

43.39

Step-by-step explanation:

It's easy division/

Answer:

Y=4x-3

Explanation: If we look 2 = 5 We can do 4(2)= 8 -3 = 5 So that the answer and 4(4)= 16-3 = 13 so these are the Y so this is the answer!

Answer: m∠T = 48°

ΔMAT has MA = MT

=> ΔMAT is a isosceles triangle at M

=> ∠A = ∠T = (180° - ∠M)/2

=> x + 20  = (180 - 3x)/2

⇔ 2x + 40 = 180 - 3x

⇔ 5x = 140

⇔ x = 140/5

⇔ x = 28

=> ∠A = ∠T = 28 + 20 = 48°

Step-by-step explanation:

-6x-2y=42

x-y=-15

Multiply x-y=-15 by 6 ( eliminate the x first)

6(x-y)=6(-15)

(6)(x)=6x

(6)(-y)=-6y

6(-15)=-90

-6x-2y=42

6x-6y=-90

eliminate x the systems of equations by subtracting

-6x+6x-2y+-6y=42-90

-2y-6y=42-90

-8y=-48

divide both sides by -8 to get y by itself

-8y/-8=-48/8

y=6

Find x by substitution method

use y=6 into one of the system of equations

x-y=-15

x-6=-15

move -6 to the other side

sign changes from -6 to +6

x-6+6=-15+6

x=-15+6

x=-9

answer:

(-9,6)

Answer:

20x5

Step-by-step explanation:

Answer:

a- 130, 130, and 50

b- 7 and 10

Answer:

a- 130, 130, and 50

b- 7 and 10

Step-by-step explanation:

Answer:

Katherine is a nurse and has 15 feet of bandages. One of her patients was injured and needed 1/9 of the bandages she had. How many feet of bandages did she use on her patient?

Step-by-step explanation:

Answer:

X= -3

Step-by-step explanation:

Answer:

y=-2x+5; slope is -2

Step-by-step explanation:

slope is rise/run. we can see it rises 2 and goes left one which would give us rise/run=2/-1=-2. that is our slope.

using y=mx+b to write the equation, m is slope and b is the y-int.. we can see that the y-int. is (0,5). we can plug 5 into b.

plugging b and m in we can get the equation: y=-2x+5

Answer: y=4x-2

Step-by-step explanation:

Since you are looking for y-intercept, the point has to be on the vertical line and the slope is 4 so it has to go up 4 to the right 1

Answer:

11

Step-by-step explanation:

Answer:22(a)

Step-by-step explanation:22 is a factor of 66

Answer:

Volume of pyramid with square base is 1057.54 m³

Step-by-step explanation:

We are given:

Length of base of pyramid = 14.4 m

Height of pyramid = 15.3 m

We need to find:

Volume of pyramid with square base

The formula used is: [tex]Volume=\frac{1}{3}\times a^2 \times h[/tex]

Where a = base of pyramid and h is height

Putting values and finding volume

[tex]Volume=\frac{1}{3}\times a^2 \times h\\Volume=\frac{1}{3}\times (14.4)^2 \times (15.3)\\Volume=\frac{1}{3}\times 207.36 \times 15.3\\Volume=1057.54 \ m^3[/tex]

So, Volume of pyramid with square base is 1057.54 m³

Answer:

1057.5

Step-by-step explanation:

Answer:

the cube root of 262144 is 512

Answer:

64

Step-by-step explanation:

The cube root of 262144 is 64

Answer:

He burrows 6 holes in 2 minutes which means that he can burrow 3 holes in 1 minute.

To determine how many he can burrow in 7 minutes, you would multiply the

unit rate of 3 holes in 1 minute by 7.

He would burrow 21 holes in 7 minutes.

Step-by-step explanation:

brainliest pls?

Answer:

He burrows 6 holes in 2 minutes which means that he can burrow 3 holes in 1 minute.

therfore your answer would be 21 holes in 7 minutes

Step-by-step explanation:

Answer: a

Step-by-step explanation:

multiply each answer by 10

Answer:

5.3f

Step-by-step explanation:

***If you found this answer please press the heart button and mark me brainliest, thanks!***

Answer:

x is the element of {-4,-3,-2,-1,0,1,2,3,4}

Answer: b

Step-by-step explanation:

B

Answer:

The American Revolutionary War (1775–1783), also known as the American War of ... Britain remained under siege in Gibraltar but scored a major victory over the French navy. ... in America, and the colonial legislatures argued that they had exclusive right .... Howe then seized control of New York City on September 15

Step-by-step explanation:

Answer:

172.5

Step-by-step explanation:

The formula for the surface area of a right circular cone (the following shape) is πr( r + √h^2 + r^2). Since the radius (r) is already given (3) and the height (h) is already given (15), you just replace each r with 3 and h with 15. After solving this out, you should get 172.45, which rounds to 172.5 to the first decimal place