Question

9 is 1/10 of what number?

Answer 1

`\displaystyle 9 \ = \ (1)/(10) \ of \ x \\ \\ \\ 9 = (1)/(10) \cdot x \\ \\ \\ x \cdot (1)/(10)=9 \\ \\ \\ x=9: (1)/(10) \\ \\ \\ x= 9 \cdot (10)/(1) \\ \\ \\ \boxed{x=90} \\ \\ \\ \boxed{\boxed{\text{The answer is x=90}}}`