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.

Question

Mathematics

Cruz Gilbert

20 February, 00:10

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.

+3

Answers (1)

Know the Answer?

Chaim Garrett · Answer 1

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