The equation that represents this number sentence is 1/5n - 3 = 28
Let the unknown number be "n". One-fifth of a number is expressed as 1/5n
Three less than one-fifth of a number is expressed as 1/5n - 3
Finally, if three less than one-fifth of a number is equal to 28, then the final expression will be 1/5n - 3 = 28
The equation that represents this number sentence is 1/5n - 3 = 28
Learn more on equation here: https://brainly.com/question/2972832
#SPJ11