SOLUTION: Elizabeth is five-sixths the age of her sister Nancy. If Elizabeth is ten years old, how old is Nancy? Write an equation to calculate Nancy's age.

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Question 1084465: Elizabeth is five-sixths the age of her sister Nancy. If Elizabeth is ten years old, how old is Nancy? Write an equation to calculate Nancy's age.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Eliz=10 and 10 is (5/6) of 10*(6/5), or 60/5 or 12.
her sister's age is x
10 = (5/6)x
multiply both sides by the reciprocal of 5/6 or 6/5
x=12 years