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Lynna [10]
3 years ago
5

What is 9x + 12 < 84 and 2x - 6x > -8

Mathematics
2 answers:
Aleks04 [339]3 years ago
5 0

(9x+12<84)

9x+12-12<84-12    

9x<72

=x<8



(2x-6x>-8)

-4x>-8

4x<8

=x<2


and the answer is x<2



Igoryamba3 years ago
5 0
9x+12<84 is 9x<72 which is x<7
2x-6x>-8 is -4x>-8 which is x<2
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URGENT! how can you use subtraction to describe division?
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Answer:

Just like multiplication is adding the same number multiple times, dividing can be described as subtracting the same number multiple times.  

Ex:

4 x 3 = 12

4 + 4 + 4 = 12

8/2 = 4

8 -2 -2 = 4

4 0
3 years ago
Is the difference between a positive mixed number and a negative mixed number always, sometimes, or never positive?
Annette [7]
Ok It depends upon what the order of the terms might be

 

If we consider that the positive mixed number is the first term and the negative mixed number is the second term and we consider "difference" to be subtraction.....then the result is positive

 

For example

(3 + 1/2) -  [ -(1 + 1/2)] =

 

(3 +1/2) + (1 + 1/2) = 5   since subtracting a negative results in a positve

 

But....if we had the reverse order with the same operation, we would have

 

-(1 + 1/2) - (3 + 1/2)   and the result is - 5

 

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5 0
3 years ago
X2 – 2x – 17 = 0<br> Factoring
denpristay [2]

Answer:

It around 2 or 2.5

Step-by-step explanation:

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6 0
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Write 3.242424... as a mixed number.
victus00 [196]

Answer:

3\frac{8}{33}

Step-by-step explanation:

3.242424.....

This number can be written as 3  + 0.242424....

We convert the decimal part into fraction

Let x= 0.242424......

Multiply both sides by 100

100x = 24.2424....

     x=     0.2424.....

------------------------------------- (subtract  it)

99x = 24

Divide both sides by 99

So x= 24/ 99

simplify the fraction

\frac{24}{99} =\frac{8}{33}

3.242424... can be written as 3  + 0.242424....

Replace the fraction for decimal

So final answer is 3\frac{8}{33}


7 0
3 years ago
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