+0  
 
0
31
2
avatar+97 

Currently, I am 9  times as old as my son. Next year, I will be 7 times as old as my son. How old is my son now?

 Jun 27, 2020
 #1
avatar+24609 
+2

c = 9s

 

in one year  Creampuff will be    c+1    and son will be   s+1

 

c+1 = 7 (s+1)             from the first equation    we have   c/9 = s      sub this in to the second equation

 

c+1 = 7(c/9+1)      solve for c

c -7/9 c = 6

2/9 c = 6

c  =  27          (s = 3) 

 Jun 27, 2020
 #2
avatar
0

This is AoPS homework.  Stop cheating on your homework.

 Jun 30, 2020

31 Online Users

avatar
avatar
avatar
avatar
avatar
avatar
avatar