The whole number portion is always the number to the left of the decimal. In this case it is 5. You have to be careful what you say if you are working in scientific notation.
For your second question 0.261 is the decimal portion. If the only part present was 0.261, then 0 is the whole number portion, believe it or not. Nice question. You can learn a lot from it.
Answer:
x = -5/2
Step-by-step explanation:
4x+2 = -8
We are solving for x
The first step in isolating x is to subtract 2 from each side
4x+2-2 = -8-2
4x = -10
Divide each side by 4
4x/4 = -10/4
x = -10/4
Simplify the fraction
x = -5/2
<span>x/4+3=24
x/4 + 3 -3 = 24 -3
x/4 = 21
x/4 * 4 = 21 * 4
x = 84</span>
It is rounded to 20 because 23 is more closer to 23 than 30