SOLUTION: A teacher is four times as old as a student. In 12 years, the student’s age will be half of the teacher’s age. How old are they now?
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Question 1116901: A teacher is four times as old as a student. In 12 years, the student’s age will be half of the teacher’s age. How old are they now?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the teacher's age now
Let = the student's age now
-----------------------------------
(1)
(2)
-----------------------------------
(2)
Plug (1) into (2)
(2)
(2)
(2)
and
(1)
(1)
(1)
The teacher is 24
The student is 6
---------------------
check:
(2)
(2)
(2)
(2)
OK
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