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Veseljchak [2.6K]
3 years ago
7

Twice a number, decreased by nineteen

Mathematics
2 answers:
anzhelika [568]3 years ago
5 0
2n-19 I think is the answer :3
sasho [114]3 years ago
5 0
2x-9 just as the other one said I prefer to use x as a variable when they say of a number I learned this last month it is rly easy once you get used to it
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(7x – 8) + (3X + 8) = 180 x=
GenaCL600 [577]

Step-by-step explanation:

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3 0
3 years ago
Is 1/3x-2y=7 a linear function
Ann [662]

Answer:

The equation is not a linear function.

5 0
3 years ago
How many different triangles can you make that have angels 60˚, 60˚, 60˚ ?
svet-max [94.6K]

Answer:

Infinite

Step-by-step explanation:

A triangle that has all 60-degree angles is equilateral, which means that all side lengths are the same. However, there are infinite possibilities for the side lengths!

I hope this helped, please give brainliest if this is correct! Thank you!

3 0
3 years ago
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Esteban has a big jar of change in his room. He has 600 coins total, and 240
elixir [45]
  You can set up a proportion to solve for the percentage of the coins that are pennies. Of course, there are alternate methods as well, but this is one method. First, you define the percentage of the coins that are pennies to be equal to a variable, such as x. Next, you write 240/600 = x/100, due to how "x" is the amount out of 100 (since per cent is for every cent (out of 100)), and 240 would correspond to x while 600 would correspond to 100. This proportion may also be written as 100/x = 600/240, or 240/x = 600/100. In order to solve for x, you use cross-products, or you multiply each denominator by the numerator of the other fraction. You will be left with a numerical value that's equal to a number times x, and then you divide both sides of the equation by the coefficient of x in order to isolate x. As a result, you will have the percentage of the coins that are pennies to be your answer. Remember to write the units for every numerator and denominator in your proportion.
8 0
3 years ago
Read 2 more answers
Use the rule to write the first five terms of the pattern.
AlekseyPX

Answer:

A =First term of the pattern = 11

To find the first five terms we have to use the rule which is

Add 10 to first term and then subtract 5 from it.Which is equivalent to

= A +10 -5

1. Second Term = 11 + 10 -5

  = 21 - 5

   =16

→Third term = 16 +10-5

        = 26 - 5

       = 21

→Fourth term : 21 + 10 - 5

     = 31 -5

      = 26

→Fifth term : 26 +10 -5

                = 36- 5

                = 31

→Sixth term:

=31 + 10- 5

= 41 -5

 = 36

So, the first five term apart from 11 is 16, 21,26,31,36 which is an Airthmetic progression.



4 0
3 years ago
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