Question

7.) The sum of the ages of Kusi and Aboagye is 35 years. Kusi is 5 years older than Aboagye. How old are the two people?

Answer 1

Aboagye is 15 years old. Kusi is 20 years old.

Explanation:

Expressing in algebraic language we define that the sum of the ages of Kusi (K) and Aboagye (A) is 35:

K + A = 35

Next, we define that Kusi is 5 years older than Aboagye:

K = 5 + A

We substitute in the first equation

(5 + A) + A = 35

and solve the linear equation

5 + 2A = 35

2A = 35 - 5

A = 30/2

A = 15

Therefore, we define that Aboagye is 15 years old and that Kusi is 5 years old, that is 20 years.