Here, Mass of one specimen = 0.00063 = 6.3 * 10⁻⁴
Now, Mass of 6 specimens = 6.3 * 10⁻⁴ * 6
= 37.8 * 10⁻⁴ = 3.78 * 10⁻³
In short, Your Answer would be: 3.78 * 10⁻³ Kg
Hope this helps!
For this problem you can do it a couple of ways. the way that i chose to do it was by moving everything to get y alone, but you can also find the x and y intercepts by plugging in 0 for the other variable (what i mean by this: x+5y=10; plug in 0 for x and your y intercept is 2). then you graph each equation and the solution to the system (if you also need that) would be (-4,3) since this is where the lines intersect.
Integers are numbers and absolute value is the magnitude of the numbe non dependent of its sign (absolute value is the number as a positive) ex; the absolute value of -3 is 3... and if the original number is positive it stays the same so ex; the abosolute value of 8 is 8
2/6. divide 2 by 2 and u get 1 and 6 by 2 and u get 3 which means 2/6=1/3