Question

Diego has $0.97 in his pocket. What is the greatest number of dimes he could have?

Answer 1

The value of a dime is $0.10. If we call the amount of dimes as x, the solution for the following inequality is our answer

`0.10x\leq0.97`

If we multiply both sides by 10, we're going to have

`x\leq9.7`

Since x must be a whole number, the greatest possible number of dimes he could have is 9.