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Alika [10]
3 years ago
10

Can you plz help i don't understand

Mathematics
1 answer:
iris [78.8K]3 years ago
5 0
The difference is 160
c. 200%
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Simplify the following expression:
Bas_tet [7]

Answer:

3x-8y+40z

Step-by-step explanation:

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2 years ago
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Simplify (6ab3c)(-abc2).
sp2606 [1]
Sorry, I know it's a little late.The answer is -6a^2 b^4 c^3
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3 years ago
Please Answer Quick 70 Points !
Kipish [7]

Answer:

The ordered pair (7, 19) is a solution to the first equation because it makes the first equation true

The ordered pair (7, 19) is not a solution to the system because it makes at least one of the equations false

Step-by-step explanation:

we have

2x-y=-5 -----> First equation

x+3y=22 -----> Second equation

Solve the system of equations by graphing

Remember that the solution of the system is the intersection point both graphs

The solution is the point (1,7)

The ordered pair (7,19) lie on the first line, so is a solution of the first equation

see the attached figure

<u><em>Verify each statement</em></u>

case 1) The ordered pair (7, 19) is a solution to the first equation because it makes the first equation true

The statement is true

case 2) The ordered pair (7, 19) is a solution to the second equation because it makes the second equation true

The statement is false, because the ordered pair (7,19) not lie on the second line

case 3) The ordered pair (7, 19) is not a solution to the system because it makes at least one of the equations false

The statement is true

case 4) The ordered pair (7, 19) is a solution to the system because it makes both equations true

The statement is false,because it makes only the first equation true

6 0
3 years ago
Simplify each expression <br><br> 1. 2x + (x - 4) + (2y - 5)<br><br><br> 2. 3(x - 2) + 4(x + 3)
Shtirlitz [24]

Answer:

1. 3x-9+2y

2. 7x+6

Step-by-step explanation:

1. 2x + (x - 4) + (2y - 5)

  2x+x-4+2y-5

  3x-9+2y

2. 3(x - 2) + 4(x + 3)

  3x+4x-6+12

  7x+6

3 0
2 years ago
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Boris buys the newspaper every morning.
Lelu [443]

Answer:

11.5

Step-by-step explanation:

1.50 x 5 = 7.50

0.74 + 3.25 = 4

7.50 + 4 = 11.5

3 0
3 years ago
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