Remember that the word of implies for multiplication, so we can write:
15%(x)=9
Solve.
15%(x)=9
Convert 15% into a ratio/fraction.
15/100
Simplify.
GCF of 15 and 100 is 5. 15/5=3; 100/5=20.
3/20
Rewrite.
3/20(x)=9
Multiple both sides of the equation by 20.
3/20*20(x)=9*20
3x=180
Divide to isolate x.
3x/3=180/3
x=60
Thus, 15% of 60 equals 9.
