SOLUTION: A shipment of 21 computer keyboards and 33 monitors cost $35,564.25. Another shipment of 41 keyboards and 36 monitors cost $49,172.50. find the cost of each keyboard and each mon

Algebra ->  Finance -> SOLUTION: A shipment of 21 computer keyboards and 33 monitors cost $35,564.25. Another shipment of 41 keyboards and 36 monitors cost $49,172.50. find the cost of each keyboard and each mon      Log On


   

Question 808363: A shipment of 21 computer keyboards and 33 monitors cost $35,564.25. Another
shipment of 41 keyboards and 36 monitors cost $49,172.50. find the cost of each
keyboard and each monitor.
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
A = 35564.25
B = 49172.50
21k + 33m = A ... eqn 1
41k + 36m = B ... eqn 2
k = (B - 36m)/41
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21( (B - 36m)/41 ) + 33m = A ... eqn 3
Answer:
you solve equation 3 for m then plug m into equation 1 and solve for k
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