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Tpy6a [65]
3 years ago
9

[{(-42)÷7} -(-2)] × (-7) +7

Mathematics
2 answers:
sweet-ann [11.9K]3 years ago
4 0

Answer:

35

Step-by-step explanation:

Vera_Pavlovna [14]3 years ago
4 0

Answer:

35

Step-by-step explanation:

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Solve each system by elimination.
max2010maxim [7]

Answer:

Step-by-step explanation:

-x-2y+4z=-14

x=-2y+4z+14

2x+2y+2z=-6

2x=-2y-2z-6

x= -y-z-3

-x-6z=-3

x=3-6z

8 0
3 years ago
How much money does Carl earn per hour? Show your work. You will not receive full credit for a
Komok [63]
  • From the table showing in the diagram, Let's pick the data in the first row:

Time = 3 hours

Money earned = $45

  • The amount of money Carl earns per hour is calculated as:

3 hours = $45

1 hour = ?

Cross Multiply

1 hour x $45 / 3 hours

= $15

  • Let's confirm our answer using the data in the last column

Time = 10 hours

Money earned = $150

The amount of money Carl earns per hour is calculated as:

10 hours = $150

1 hour = ?

Cross Multiply

1 hour x $150 / 10 hours

= $15

Therefore, the amount of money Carl earns per hour is $15

To learn more, visit the link below:

brainly.com/question/1004906

3 0
2 years ago
Which of the following represents "four times the square of a number is thirty-six"?
Lapatulllka [165]

Answer:

Option (b) is correct.

4x^2=36

Step-by-step explanation:

 Given  expression "four times the square of a number is thirty-six"

We have to write it mathematically and choose the correct options out of given options.

Consider the given expression  "four times the square of a number is thirty-six"

Then

let the number be x ,

Then four times the square of a number written mathematically as 4x^2

And given "four times the square of a number is thirty-six" written mathematically as 4x^2=36

Therefore, "four times the square of a number is thirty-six" written mathematically as 4x^2=36

Option (b) is correct.

6 0
3 years ago
Read 2 more answers
Z−(−12)=15 . Addition Equation: z=
steposvetlana [31]

Answer:

Z=3

Step-by-step explanation:

z+12=15

z=3

4 0
3 years ago
Read 2 more answers
Explain how to determine which method you would use to solve various systems. Explain what characteristics a system has that mak
OlgaM077 [116]

Answer:

Step-by-step explanation:

The best method I know is elimination, i explained it in the chat in the prev question. It's applicable in any scenario.

5 0
3 years ago
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