Two times michaels age plus three times Kathys age is 47. Kathy is also four years older than Michael. How old is Kathy?

asked May 14, 2018 142k views

2 votes

7.8k points

Please log in or register to add a comment.

4 votes

i think kathys age is 11

Nxu answered May 17, 2018

by Nxu

8.5k points

6 votes

Michael is m
Kathy is k

2m+3k=47
m+4=k

2m+3(m+4)=47
2m+3m+12=47
5m+12=47
5m=35

m=7
k=11

9.0k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers