SOLUTION: Jills mother was 27 when Jill was born. The sum of their ages is now 51. How old is Jill? The trick here is that I have to find out the equation not solve the problem.
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Question 175671: Jills mother was 27 when Jill was born. The sum of their ages is now 51. How old is Jill? The trick here is that I have to find out the equation not solve the problem.
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
call jill and mother's ages , j and m, respectively
:
m=j+27....eq 1
m+j=51....eq 2
:
take m's value from eq 1 and plug it into eq 2
:
j+27+j=51
:
2j=24
:
jill's age
:
mom's age
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