Question

Juan is not yet 30 years old. He is 12 years older than Maria. Write an inequality to represent Maria' s age.

Answer 1

I really need help on this one

Answer 2

let J is Juan's age and M is Maria's age
first, we have J < 30 and
J = M + 12, in other words M = J - 12

supposed the first is an equation J = 30,
then subtitute J = 30 to the 2nd equ.
M = J - 12
M = 30 - 12
M = 18

therefore, as the conclusion is M < 18 old