Question

5.Mitchell's dog is 1 as old as Katie's cat. The sum of their ages is 123years. How old isMitchell's dog?A 3 years old8 years oldD. 9 years oldB. 4 years old

Answer 1

Given: Mitchell's dog is 1/3 as old as Katie's cat. The sum of their ages is 12 years.

Required: To find out how old is Mitchell's dog.

Step-by-step explanation: Let Mitchell's dog be x years old. Then Katie's cat is 3x. Now according to the question-

`\begin{gathered} x+3x=12 \\ 4x=12 \\ x=(12)/(4) \\ x=3 \end{gathered}`

Hence Mitchell's dog is 3 years old.

Final Answer: Mitchell's dog is 3 years old.