SOLUTION: The sum of the ages of Barbara-Sue, Frank, and Mary is 300. And here are the ages: Mary is 8 years younger than Frank. Frank is 9 years older than Barbara-Sue. What is the age of M

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Question 1058384: The sum of the ages of Barbara-Sue, Frank, and Mary is 300. And here are the ages: Mary is 8 years younger than Frank. Frank is 9 years older than Barbara-Sue. What is the age of Mary?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
B+F+M=300
B+F+(F-8)=300
(F-9)+F+(F-8)=300
3F-17=300
3F=317
F=105 2/3
M=97 2/3 ANSWER
B=96 2/3