<PRE><B>Question 810229</B>
7/5 = r/b
r + b = 12
R + B = 60
R = 60 - B
(R+7)/(B+5) = 7/5
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(R+7)/(B+5) = 7/5
(60 - B + 7)/(B + 5) = 7/5
(67 - B)/(B + 5) = 7/5
67 - B = (7/5)(B + 5)
67 - B = (7/5)B + 7
60 = (7/5)B + (5/5)B
60 = (12/5)B
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B = 25
R = 35
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