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A machine shop makes boxes(B) and tins(T).contribution per box is $5 and per tin is $7.A box requires 3 hours of machine processing time,16 kg of raw materials and 6 labor hours.a tin requires 10 hours of machine processing time, 4 kg of raw materials and 6 labor hours.in a given month,330 of machine processing time, 400 kg of raw material and 240 labor hours are available.the manufacturing technology used means at least 12 tins mus be made every month
3B+10T ?330
16b+4t?400
6b+6t?240
T?12- why this should be higher or equal to 12 it does not say will exceed instead we should write T?12-it is unclear for me-need explanation
B?0
T?0
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