let's say is "x", so "x" is then 100% of the whole bill.
we know 15% is 22.05, what is "x"?
[tex]\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 22.05&15\\ x&100 \end{array}\implies \cfrac{22.05}{x}=\cfrac{15}{100}\implies 2205=15x \\\\\\ \cfrac{2205}{15}=x\implies 147=x[/tex]
Answer:
$147
Step-by-step explanation:
15% over 100 is .15
So you get .15x= 22.05
Get x by itself by dividing .15 by .15
whatever you do to one side you have to do to the other so divide 22.05 by .15 and you get $147
