if Ellen is 11 years older than Mia and last year Ellen was twice as old as Mia how old is mia?

Question

Figure this word problem out

Answer 1

This year:  E=11+M.  Last year E-1=2M-1

substitute the expression for E into second equation.

 

11+M-1=2M-1

M+10=2M-1

11=M

 

Mia is 11 years old and Ellen is 22.