Question #9bec3

2 Answers
Jan 15, 2018

1)5
2)8
3)10
4)13
5)24

Explanation:

For calculating 20% of a number you need to multiply the number with 20%
20% =# 20/100#
=# 1/5#
So you need to multiply the number with #1/5#
I think you can do that,
Hope it helps you

Jan 15, 2018

See a solution process below:

Explanation:

"Percent" or "%" means "out of 100" or "per 100", Therefore 20% can be written as #20/100#.

When dealing with percents the word "of" means "times" or "to multiply".

Finally, lets call the number we are looking for "n".

Putting this altogether we can write this equation and solve for #n# while keeping the equation balanced:

20% of 25:

#n = 20/100 xx 25#

#n = 500/100#

#n = 5#

20% of 40:

#n = 20/100 xx 40#

#n = 800/100#

#n = 8#

Using this process you should be able to complete the remaining questions.