Use 10% to find 90% of 50:
number
percent
0
0%
10%
5
50
100%
5
90%
To find 90% of 50, we first need to find 10% of 50.
10% of 50 is 5.
Now, to find 90% of 50, we can take 50 (the total) and subtract 5 (10%) from it:
50 - 5 = 45
Therefore, 90% of 50 is 45.