Question

What is 90 is 1/10 of what

Answer 1

Taking a number's 1/10 means dividing that number by 10. Therefore when you are asked to find the number that was applied the 1/10 to produce 90, you simply multiply 90 with 10. Thus the answer is 900.

Answer 2

`x \ of \ (1)/(10)=90 \\ \\ x*(1)/(10)=90 \\ \\ (x)/(10)=90 \\ \\ x=10*90 \\ \\ \boxed{x=900}`