I have two story problems.
1. Lucy is 4 years older than her neighbor. The sum of their ages is no more than 14 years. The oldest age that Lucy's neighbor could be is ___ years old.
2. Kat's father is 4 times as old as Kat. The sum of their ages is no less than 55. The youngest age Kat could be is ___ years old.
let lucy = l & neighbour= n l = n +4 l + n= 14 years substitute l with n +4 (n +4) + n = 14 2n +4 =14 n=5 years l = n + 4 lets substitute n with 5 l = 5 + 4 lucy = 9 years