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Thepotemich [5.8K]
3 years ago
13

Adding negative numbers –8 + 8 =

Mathematics
1 answer:
-BARSIC- [3]3 years ago
5 0
The answer would be 0
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Which of the following equations has the same solutions as the equation 3x + 2y = -12? Check all that apply.
Mariulka [41]

Answer:

B.\ -3x - 2y = 12

C.\ 15x + 10y = -60

E.\ 6x + 4y = -24

F.\ 1.5x + y =-6

Step-by-step explanation:

Given

3x + 2y = -12

Required

Determine equations with same solution as 3x + 2y = -12

For a solution to have the same solution as 3x + 2y = -12, the equation must be expressed as 3x + 2y = -12

A.\ 3x - 2y = 12

This can not be expressed as 3x + 2y = -12

B.\ -3x - 2y = 12

Multiply through by -1

-1(-3x - 2y) = 12 * -1

3x + 2y = -12

This has the same solution as the given equation

C.\ 15x + 10y = -60

Divide through by 5

\frac{15x}{5} + \frac{10y}{5} = \frac{-60}{5}

3x + 2y = -12

This has the same solution as the given equation

D.\ 6x + 2y = -12

Divide through by 2

\frac{6x}{2} + \frac{2y}{2} = \frac{-12}{2}

3x + y = -6

This can not be expressed as 3x + 2y = -12

E.\ 6x + 4y = -24

Divide through by 2

\frac{6x}{2} + \frac{4y}{2} = \frac{-24}{2}

3x + 2y = -12

This has the same solution as the given equation

F.\ 1.5x + y =-6

Multiply through by 2

2*1.5x + 2*y =-6*2

3x + 2y =-12

This has the same solution as the given equation

G.\ x + \frac{2}{3}y = -12

Multiply through by 3

3 * x + 3*\frac{2}{3}y = -12*3

3x + 2y = -36

This can not be expressed as 3x + 2y = -12

The equations with the same solution as 3x + 2y = -12 are the ones that we were able to expressed as 3x + 2y = -12.

And the equations are:

B.\ -3x - 2y = 12

C.\ 15x + 10y = -60

E.\ 6x + 4y = -24

F.\ 1.5x + y =-6

7 0
3 years ago
2. A father offers three portions of his crop land to his daughter for a corn maze. All
Tamiku [17]

If the daughter does not want more than 2,250,000 square feet of the corn maze, hence she will choose all the portions

<h3>Circumference and area of circles</h3>

The formula for calculating the area of circle is expressed as;

A  = πr²

r is the radius of the circle

If r = 875ft

A = 3.14(875)²

A = 2,404,062.5squar feet

For the diameter = 1715feet

r = 1715/2

A = 3.14(1715/2)²

A =2,308,861.625 square feet

For the third portion has a 5305 feet circumference;

5305 = 2(3.14)r

r = 844.74ft

A = 3.14(844.74)^2

A = 2,240,686.70

If the daughter does not want more than 2,250,000 square feet of the corn maze, hence she will choose all the portions

Learn more on area of circle here; brainly.com/question/28956

7 0
2 years ago
2x = 50<br> 4x + 3x = <br><br> 1/6 + 45 = <br><br> 1.60 * 45.47 =
posledela

Answer:

1. x = 25

2. Simplified is 7x

3. \frac{271}{6} , 45.166666, 45\frac{1}{6}

4. 72.752

3 0
3 years ago
10 - 5 2/3 = ? i need this for math
Katarina [22]

Answer:

4 1/3

Step-by-step explanation:

10 - 5 2/3

30/3 - 17/3 = 13/3 = 4 1/3

8 0
3 years ago
Read 2 more answers
Multiply 9· (-1) can u pls help me with this q
kirill115 [55]
A positive times a negative will always be negative
9 x -1 = -9
-9, Hope this helps!
6 0
4 years ago
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