A 2 1/2 m board is to be used for making shelves. Mario made 2 shelves each using up 5/6m of board. Does he have enough left to make another requiring 4/5 m? Give the raon to your answer.
We will see if this inequality is true, if it is then you could: 2 1/2 - 2(5/6) ≥ 4/5 5/2 - 5/3 ≥ 4/5 5/6 ≥ 4/5 We cross-multiply to see if it is true: 25 ≥ 24 TRUE Therefore you still have enough left.
