427.0 mm is more precise.
feel free to ask any questions
No because it only works with addition and multiplication
9+(-6-3)=(9-6)-3 is true tho
9-(6-3)=9-(3)=6
(9-6)-3=(3)-3=0
so not equivilent
2 numbers can be represented by the variables x and y.
Set up a system of equations:


The two numbers added together will result in a sum of 33. However, one number subtracted from another will result in a difference of 1.
In both systems of equations, there are inverses of variable y. Therefore, we can combine the systems of equations by adding them together:


Divide both sides by 2 to get x by itself:

One of the numbers will be 17.
Plug the value into one of the equations:

Add y to both sides:

Subtract both sides by 1 to get y by itself:

The two numbers that sum up to 33, with a difference of 1 between them, will be 16 and 17.
The six sided die has 6 sides (with numbers 1,2,3,4,5 and 6). That's why the probability to roll number 2 in one trial is equal to

.If you'll dol 50 trials, then you can expect

times to roll number 2 (8 or 9 times).