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nikdorinn [45]
3 years ago
14

What should be done first to simplify 11 – 2 + 7 + 5 – 8 + 13

Mathematics
2 answers:
Otrada [13]3 years ago
7 0

Answer:

Remember PEMDAS; parenthesis, exponents, multiplication, division, addition and subtraction.

Step-by-step explanation:

so ti will be;

2+7+5-8+13

27-8

21

lorasvet [3.4K]3 years ago
6 0

Answer:

I think the first step is to group all the addition first and then you do the subtraction.

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The diameter of the circle is 12m find the circumference and leave at pi
SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

Here, d=12 m

r=12/2=6 m

Now,

Circumference(c)=2πr

=2π6

=12π m

5 0
2 years ago
Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n?
exis [7]

The solution set of the equation is all reals ⇒ 3rd answer

Step-by-step explanation:

The solution set of an function is the set of all vales make the equation true. The equation has:

  • Solution if the left hand side is equal to the right hand side
  • No solution if the left hand side doesn't equal the right hand side

∵ The equation is 18 - 3n + 2 = n + 20 - 4n

- Add the like terms in each side

∴ (18 + 2) - 3n = (n - 4n) + 20

∴ 20 - 3n = -3n + 20

- Add 3n to both sides

∴ 20 = 20

In the equation of one variable, when we solve it if the variable is disappeared from the two sides, and the two sides of the equations are equal, then the variable can be any real numbers, if the two sides are not equal, then the variable couldn't be any value

∵ The the variable n is disappeared

∵ The left hand side = the right hand side

∴ n can be any real number

∴ The solution set of the equation is all real numbers

The solution set of the equation is all reals

Learn more:

You can learn more about the equations in brainly.com/question/11229113

#Learnwithbrainly

8 0
3 years ago
Read 2 more answers
What is x? -2.5x- 2=18​
snow_tiger [21]

Answer:

x = -8

Step-by-step explanation:

-2.5x - 2 = 18.

Add 2 to both sides.

-2.5x = 20.

Divide both sides by -2.5.

x = -8

3 0
2 years ago
The length of one side of a square is 3n+2. The perimeter of the square is 4(3n+2). Which expression is equivalent to the perime
deff fn [24]

Answer:

4(3n + 2)

Step-by-step explanation:

as we know perimeter of a square is 4 x side

one side is 3n + 2

4 sides = 4(3n +2)

8 0
3 years ago
Heather and her family are going to the grand opening of a new amusement park. There is a special price on tickets this weekend.
Likurg_2 [28]
56 + 16.80 = 72.80!!!!!!!!!!!!!
4 0
3 years ago
Read 2 more answers
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