SOLUTION: THERE ARE 40 STUDENTS IN BAND THIRD PERIOD. THE NUMBER OF GIRLS IS 4 LESS THAN 3 TIMES THE NUMBER OF BOYS. HOW MANY BOYS ARE IN THIRD PERIOD ?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: THERE ARE 40 STUDENTS IN BAND THIRD PERIOD. THE NUMBER OF GIRLS IS 4 LESS THAN 3 TIMES THE NUMBER OF BOYS. HOW MANY BOYS ARE IN THIRD PERIOD ?      Log On


   

Question 1072238: THERE ARE 40 STUDENTS IN BAND THIRD PERIOD. THE NUMBER OF GIRLS IS 4 LESS THAN 3 TIMES THE NUMBER OF BOYS. HOW MANY BOYS ARE IN THIRD PERIOD ?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
THERE ARE 40 STUDENTS IN BAND THIRD PERIOD. THE NUMBER OF GIRLS IS 4 LESS THAN 3 TIMES THE NUMBER OF BOYS. HOW MANY BOYS ARE IN THIRD PERIOD ?
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b + g = 40
g = 3b-4
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Substitute for "g" and solve for "b"::
b + 3b-4 = 40
4b = 44
Boys = 11
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Girls = 3b-4 = 29
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Cheers,
Stan H.
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