Question

220 is 20% of what number? Explain

Answer 1

220= 20% "of" y -"of" means multiply! Convert the percent to a decimal
220= .2 * y -divide 220 by .2
1100= y

Answer 2

0.20a=220

Where 0.20 is the decimal form of 20%
a is the unknown number

0.20a=220
------- -----
0.20 0.20
a=1100

220 is 20% of 1100.