220 is 20% of what number? Explain
220= 20% "of" y -"of" means multiply! Convert the percent to a decimal 220= .2 * y -divide 220 by .2 1100= y
0.20a=220Where 0.20 is the decimal form of 20% a is the unknown number0.20a=220------- -----0.20 0.20a=1100220 is 20% of 1100.
