What variable do you eliminate?
4x + 8y = 20
-4x + 2y = -30
x because they have opposite signs
O
O
y because they don't have opposite signs
x but you have to multiply the top equation by 2, and the bottom equation by -2
O y but you
y but you have to multiply the bottom equation by 4

Step-by-step explanation:

[tex]v = \frac{4}{3} \times 3 \times {2}^{3} = 4 \times 8 = 32 \: {cm}^{3} [/tex]

Answer:

0.6

Step-by-step explanation:To find this answer, you must thinkk of the slash inbetween the numerator and the denominator. So divide the 3 bye the 5. Use a calculator if needed. 3/5=0.6 Hope this helped plz mark brainliest.

Answer:

X-intercept

Step-by-step explanation:

A "zero" of a function is thus an input value that produces an output of 0. An alternative name for such a point (x, 0) in this context is an x-intercept.

=========================================

Explanation:

You move the decimal point two spots to the left to go from 2.85% to 0.0285

Or you can think of it like this:

2.85% = (2.85)/100 = 0.0285

since "percent" means "per 100"

Answer:

first box:6

second box: 1

Step-by-step explanation:

divide bothe 18b and 3y by 3 and you get those values.

Answer: 1. 3b 18y

Step-by-step explanation:

Answer:

the required equation is y - 2/5x = 11/5

Answer:

x=19

Step-by-step explanation:

First, you place the numbers in place of the variables in their relative positions using the pythagorean theorem:

[tex]15^{2} +x^{2}=24^{2}[/tex]

Then you square the numbers that you currently have:

[tex]225+x^{2}=576[/tex]

Then subtract 225 from both sides to isolate the x:

[tex]x^{2} =576-225[/tex]

This gives you the equation:

[tex]x^{2} =351[/tex]

Then take the square root of both sides which gives you:

[tex]x=18.7349939952[/tex]

Then round to the nearest whole number which gives you x=19

Answer:

Step-by-step explanation:

-40x + 8y = -24

 3x  -  8y = 24

-37x = 0

x = 0

0 + y = -3

y = -3

(0, -3)

Answer:

I will show you how to solve for x and y.

Step-by-step explanation:

-5x + y = -3

3x - 8y = 24

You can isolate y in the first equation, and substitute that into the second equation.

so to isolate y in -5x + y = -3, you would add 5x to both sides

this gives you y = 5x - 3

Then substitute this y into the equation below.

3x - 8(5x-3) = 24     (this way, the y variable disappears)

then distribute the 8 into the bracket

3x - 40x + 24 = 24

combine the variables

-37x + 24 = 24

isolate x by moving the constants to one side

-37x = 0

so x = 0

I am not sure if you want the rest, but here it is.

substitute x = 0 into one of the equations.

-5x + y = -3

-5(0) + y = -3

y = -3

Answer:

met is het yitr toyourt

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

I chose C because it more detailed than the rest of the question. Everyone already knows how many months are in a year. What is for lunch today is just a normal question. How many students have a cell phone was not really detailed but it would have been different if they said "How many percentage of college students in math class uses cell phones.  

Hope this helps:)

Answer:

c

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

10% of 240= 24

216/24= 9

Answer:

$84.50

Step-by-step explanation:

Answer:

$84.504

Step-by-step explanation:

20% of 70.42 is 14.08, 14.08 plus 70.42 is 84.504

Answer:

(72 divided by 6) + 6

Step-by-step explanation:

78 divided by 6 is 13. The question (72 divided by 6) + 6 does not equal to 13, it equals to 14, therefore (72 divided by 6) + 6 is not equivalent.

Answer:

(72 divided by 6) + 6

Step-by-step explanation:

Answer: y=12 x =9

Step-by-step explanation:

In a parallelogram the diagonals bisect each other making them equal.

this means 2y + 6 = 30

we can rearrange this as 30 - 6 = 2y

24 = 2y  therefore y = 12

3x - 3 = 24

We can rearrange this as 24 + 3 = 3x

3x = 27

27 / 3 = 9

x = 9

Hope this helped :)

Answer:

ITS IS D (4,-3)

Step-by-step explanation:

Ap ex

The coordinates of M is M’(4,-3).

Rotation means the circular movement of an object around a center. It is possible to rotate different shapes by an angle around the center point.

Given:

LMNP is rotated 90° clockwise around the origin.

If we rotate the figure in LMNP  about 90 degrees then the coordinates will change into

(x, y)  to (y, -x).

As, x= 3, y=4

Hence, the coordinates of M is M’(4,-3).

Learn more about this concept here:

https://brainly.com/question/22851947

#SPJ5

Answer: See explanation

Step-by-step explanation:

Let the width be x

Then, the length will be x+4

Area = Length × Width

Therefore,

x × (x+4) = 60

x² + 4x = 60

x² + 4x - 60 = 0

x² + 10x - 6x - 60 = 0

x(x + 10) - 6(x + 10) = 0

(x - 6)(x + 10) = 0

x - 6 = 0

x = 6

The width is 6feet

Length = 6+4 = 10 feet

Answer:

Answer: The 4 consecutive odd integers are 15, 17, 19, 21.

Answer:

15 + 17 + 19 + 21= 72

Step-by-step explanation:

hope this helped!

Answer:

the last one

Step-by-step explanation:

(:

Answer:

the answer is A 6 apples

Step-by-step explanation: you want to divide 38 by 8 if you do that you get 4 bags with 6 apples left

Answer: Carlos can fill 4 bags and have 6 left over

Step-by-step explanation:

The first step is to divide 38 by 8.

38 ÷ 8 = 4 with 6 left over.

That means that Carlos will be able to fill 4 bags and have 6 left over.

The answer is A, 6. Hope this helps, and good luck!

Answer:

both sides of the equation.

The solution of the equation is

.

Check the solution by substituting

for g and simplifying.

Step-by-step explanation:

What steps are used to solve the equation?

g – 8 = 14

Complete the statements.

First,

both sides of the equation.

The solution of the equation is

.

Check the solution by substituting

for g and simplifying.

Answer:

Step-by-step explanation:

What steps are used to solve the equation?

g – 8 = 14

Complete the statements.

First,  

✔ add 8 to

both sides of the equation.

The solution of the equation is  

✔ g = 22

.

Check the solution by substituting  

✔ 22

for g and simplifying.

Answer:

24/8=3. 3-2=1 but you don't have to put the 1

3a

The 3 and the 2 are subtracted.

Answer:

18

Step-by-step explanation:

if AB : BC : AC is 3 : 4 : 2 and BC = 8 then AB = 6 and AC = 4

To calculate the perimeter of the triangle we add all side lengths up

4 + 6 + 8 = 18

Answer:

Step-by-step explanation:

12

units.

Explanation:

Using the Distance Formula,

A

B

2

=

{

(

−

5

)

−

(

−

2

)

}

2

+

{

(

−

2

)

−

(

−

2

)

}

2

=

9

∴

A

B

=

3

Similarly,

B

C

=

5

,

and

,

A

C

=

4

Hence,

the Perimeter=

A

B

+

B

C

+

A

C

=

12

units.

Answer link

Step-by-step explanation:

7k² + 3k - 10

= 7k² + ( 10 - 7 ) k - 10

= 7k² + 10k - 7k - 10

= k( 7k + 10 ) - 1( 7k + 10)

= ( 7k + 10) ( k - 1)

Hope it will help :)

Answer:

Step-by-step explanation:

Use the Pythagorean Theorem to determine the roots

k = 1,-10/7

7k^2+3k-10 = 7(k-1)(k+10/7) = (k-1)(7k+10)

Answer:

12:18 and 20:30

Step-by-step explanation:

Answer:

12:18? n 20:30?

Step-by-step explanation:

sorry if im rong