What percent is 9 out of 20?

1 Answer
Feb 28, 2017

Answer:

9 out of 20 = 45%

Explanation:

"Percent" or "%" means "out of 100" or "per 100", Therefore x% can be written as #x/100#.

We can write and solve this as:

#x/100 = 9/20#

#color(red)(100) xx x/100 = color(red)(100) xx 9/20#

#cancel(color(red)(100)) xx x/color(red)(cancel(color(black)(100))) = cancel(color(red)(100))5 xx 9/color(red)(cancel(color(black)(20)))#

#x = 5 xx 9#

#x = 45#