SOLUTION: Robin is twice as old as Jay, Robin is 11 years older than Ann. The total of the ages of Robin, Jay and Ann is 74 years. Use r to represent Robin's age. Use j to represent Jay

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Question 1169207: Robin is twice as old as Jay, Robin is 11 years older than Ann. The total of the ages of Robin, Jay and Ann is 74 years. Use r to represent Robin's age. Use j to represent Jay's age. Use a to represent Ann's age. Write a system of equations that can be used to determine Robin's age, Jay's age and Ann's age.
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52790)   (Show Source): You can put this solution on YOUR website!
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Normal people in healthy mind solve such problem routinely using one equation in one unknown.



Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
Robin            r=a+11=2j       2j
Jay              j                j
Ann              a               2j-11
TOTAL           74


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