Question

2/5 of a number is 16 what is the number first write an equation to describe the situation

Answer 1

Let be x the unknown number. We know that 2/5 of that number is equal to 16, this means that 2/5 multiplied by x is equal to 16, hence the equation we are looking for is:

`(2)/(5)x=16`

Solving for x we have:

`\begin{gathered} (2)/(5)x=16 \\ x=(16)/((2)/(5)) \\ x=(16\cdot5)/(2) \\ x=(80)/(2) \\ x=40 \end{gathered}`

Therefore the number we are looking for is 40