A carpenter is cutting a 2 by 4 for the framing of a roof. The length needs to be 5 feet. He allows 0.1-foot possible variation for the length of the cut. What values of l represent the acceptable lengths for the board, in feet?

Question

Could this be correct? 
L≤5.1

oobleck · Answer

almost. 4.9 ≤ L ≤ 5.1

Damon · Answer

Would 4.9 not be equally acceptable? Seems to me it would be 4.95