Question 581261
9%={{{0.09=9/100=99/1100}}}
{{{1/11=100/1100}}}
9% and {{{1/11}}} are close but not exactly the same number.
Fractions are overrated; stick with decimals if you can.
If $654 is the balance of $x invested at 9% simple interest for a year,
{{{654=x+0.09x=(1+0.09)x=1.09x}}} --> {{{x=654/1.09}}} --> {{{highlight(x=600)}}}