WAEC - Mathematics (2021 - No. 43)
The distance d between two villages east more than 18 KM but not more than 23KM.
which of these inequalities represents the statements?
18 ≤ d ≤ 23
18 < d < 23
18 ≤ d < 23
18 < d ≤ 23
คำอธิบาย
distance d more than 18 KM = d > 18 0r 18 < d
distance d but not more than 23 KM = d ≤ 23
Mathematically; 18 < d ≤ 23