Originally Answered: 4th grade math problem! (PLEASE HELP!)?
let x = mark's age
4x = mom's age
x + 4x = 30
5x = 30
x = 6
mark is 6 yrs old and his mom is 24 y.o.
If they want a table (alg is probably too advanced for 4th grade), it could look something like this:
Mark's age: 1 , 2, 3, 4, 5, 6....
Mom's age: 4, 8, 12,16,20.24....
their sum: 5, 10....and so on
obviously, though, you don't need the first few, as the mom would still be a child.
that's it! ;)