+0  
 
-1
87
3
avatar+35 

Three years ago, Austin was one-third as old he will be in fifteen years. How old is Austin?

 Apr 23, 2021
 #1
avatar+55 
-2

He would be 8

 Apr 23, 2021
edited by MusicalMalfunction  Apr 23, 2021
 #2
avatar+55 
-1

never  mind that

 Apr 23, 2021
 #3
avatar+79 
0

We can setup an equation:

 

Let \(x\) be Austin's age. 

 

We can make this equation: \(x -3 = \frac{1}{3} * (x+15)\) , which simplifies to \(x=12\)

Austin is 12 years old. 

 

Hope this helps! laugh

AnxiousLlama

 Apr 23, 2021
edited by AnxiousLlama  Apr 23, 2021

9 Online Users