Answer:
<em>The solution will be:
</em>
Step-by-step explanation:
The given inequality is: 
First we will multiply all sides by 2 for eliminating that
in the middle part. So.........

Now, we need to subtract 16 from all sides. So, we will get........

Then, we will divide all sides by 4 for getting
alone in the middle part. So.......

Thus, the solution will be: 
Answer:

Step-by-step explanation:
We are given a system of equation:

To find a solution to the given system, we follow the given steps.
1. Subtracting second equation from first and third equation, we get:

2. After eliminating z to obtain two equations in two variable, we observe that the two equations obtained were same.
So we have three equations that will all graph in the same plane.
Thus, there are infinite number of solution to the given system of equation.
We can write the values of x and y in the form of z:

Answer:
its either 3 or 4
Step-by-step explanation:
Answer: Hope this helps
Step-by-step explanation:
6.39 = 639
100
= 639
100
as a fraction
To convert the decimal 6.39 to a fraction, just follow these steps:
Step 1: Write down the number as a fraction of one:
6.39 = 6.39
1
Step 2: Multiply both top and bottom by 10 for every number after the decimal point:
As we have 2 numbers after the decimal point, we multiply both numerator and denominator by 100. So,
6.39
1
= (6.39 × 100)
(1 × 100)
= 639
100
.
(This fraction is alread reduced, We can't reduce it any further).
As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 639
100
is also equal to 639
100
when expressed as a mixed number
The answer would be 1/6 assuming a fair trial