A percent is 1 part out of 100. 1%isequalto
1
100
or0.01.

Proportions can be used to solve percent problems.

part
whole
=
percent
100
solve
Find what percentage 12 is of 20. The part is 12.

The whole is 20.

Let n represent the percent.

Write a proportion to solve for n.

12
20
=
n
100

12 · 100 = 20n

1,200 = 20n

1,200 ÷ 20 = 20n ÷ 20

60 = n

Alana got 60% of the questions correct.