SOLUTION: Please help write formula... Janets mother is 10 years more than twice Janets Age.. If Janets mother is 30, how old is Janet?
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Question 956586: Please help write formula... Janets mother is 10 years more than twice Janets Age.. If Janets mother is 30, how old is Janet?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Janet's age now
Let = mother's age now
----------------------------
given:
(1)
(2)
--------------------
Substitute (2) into (1)
(1)
Subtract from both sides
(1)
(1)
Divide both sides by
(1)
Janet is 10
----------------
check:
Janet's mother is 10 years more than twice Janets age
Twice Janet's age is:
Mother is more than that, or
OK
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