Question

Donnie's dad is 3 times older than Donnie, and the sum of their ages is no less than 56. What is the youngest that Donnie can be?

Answer 1

The youngest that Donnie can be is 14 years old.

Step-by-step explanation:

To find the youngest that Donnie can be, we need to set up an equation based on the information given. Let's assume Donnie's age is x. According to the problem, Donnie's dad is 3 times older than Donnie, so his age would be 3x. The sum of their ages is no less than 56, so we can set up the equation: x + 3x ≥ 56. Combining like terms, we get 4x ≥ 56. Dividing both sides of the inequality by 4, we find that x ≥ 14. Therefore, the youngest Donnie can be is 14 years old.

Answer 2

14

Step-by-step explanation:

If Donnie is 3 times younger than Donnie's dad, that adds up to four parts. In other words, Donnie is 1/4 his dads age. So, divide 56 by four and you have Donnie's age. The rest is Donnie's dad age.