Question 190352
Let x = total number of injections



"22 is 1% of what number of injections " translates to the equation {{{22=0.01x}}} Note: 1% = 0.01



You can rewrite the equation into {{{22/x=1/100}}} where 22 is the "part", "x" is the "whole", and 1 is the "percent".



{{{22/x=1/100}}} Start with the given equation



{{{22=(1/100)*x}}} Multiply both sides by x



{{{22*100=1*x}}} Multiply both sides by 100



{{{2200=x}}} Multiply



So our answer is  {{{x=2200}}} 



So the "whole" is 2200 which means that there are a total of 2200 injections.