3n + 7 - 11n - 31 = 160
2 answers:
You might be interested in
Average = Mean
To find the mean, add up the numbers and divide it by how many numbers there are.
So,
There are 5 numbers in total.
To do these types of division, ignore the decimal and add a 0 at the end.
So we can do:
And put back the decimal.
Hope this helps :)
To find the mean, add up the numbers and divide it by how many numbers there are.
So,
There are 5 numbers in total.
To do these types of division, ignore the decimal and add a 0 at the end.
So we can do:
And put back the decimal.
Hope this helps :)