Homework Help: 4th grade math

Posted by Hassan on Monday, January 18, 2010 at 8:25am.

Rodney is three times as old as his sister. Ayear ago he was four times as old. How old are rodney and his sister now?

4th grade math - bobpursley, Monday, January 18, 2010 at 9:28am
R=3S

R-1=4(S-1)

Does that help?
4th grade math - Writeacher, Monday, January 18, 2010 at 10:14am
3 x 3 = 9

2 x 4 = 8

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