Question 462257:  Please help me to solve this problem. A manufacturer produces three products : A,B and C. the profit for each unit sold of A,B and C are $1,$2 and $3 , respectively. Fixed cost are $17,000 per year and the cost of producing each unit of A,B and C are $4,$5 and $7, respectively. Next Year, a total of 11,000 units of all three products is to be produced and sold, and a total profit of $25,000 is to be realized. If total cost is to be $80,000 , how many units of each of the products should be produced next year? 
 Answer by lwsshak3(11628)      (Show Source): 
You can  put this solution on YOUR website! Please help me to solve this problem. A manufacturer produces three products : A,B and C. the profit for each unit sold of A,B and C are $1,$2 and $3 , respectively. Fixed cost are $17,000 per year and the cost of producing each unit of A,B and C are $4,$5 and $7, respectively. Next Year, a total of 11,000 units of all three products is to be produced and sold, and a total profit of $25,000 is to be realized. If total cost is to be $80,000 , how many units of each of the products should be produced next year? 
.. 
A+B+C=11000 (Total number of units to be produced and sold) 
4A+5B+7C+17000=80000 (Total cost) 
A+2B+3C=25000 (Profit) 
We now have 3 equations with which we can solve for units of A, B, & C 
.. 
1)A+B+C=11000 
2)4A+5B+7C=63000 
3)A+2B+3C=25000 
subtract eq 1 fm eq 3 
4)B+2C=14000 
.. 
multiply eq 3 by 4 
5)4A+8B+12C=100000 
2)4A+5B+7C=63000 
subtract eq 2 fm eq 5 
6)3B+5C=37000 
multiply eq 4 by 3 
7)3B+6C=42000 
subtract eq 6 fm 7 
C=5000 
solving for B 
6)3B+5C=37000 
3B+5(5000)=37000 
3B=37000-25000=12000 
B=4000 
solving for A 
1)A+B+C=11000 
A+4000+5000=11000 
A=11000-9000=2000 
... 
Check: 
2)4A+5B+7C=63000 
8000+20000+35000=63000 (check) 
3)A+2B+3C=25000 
2000+8000+15000=25000 (check) 
.. 
Answers: 
Units should be produced next year: 
A=2000 
B=4000 
C=5000 
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