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(1)设派x名消防员前去救火,用t分钟将火扑灭,总损失为y元,则t=5×10050x?100=10x?2.
(2)y=灭火材料、劳务津贴+车辆、器械、装备费+森林损失费
=125tx+100x+60(500+100t)
=125×10x?2+100x+30000+60000x?2=1250×x?2+2x?2+100(x?2+2)+30000+60000x?2
=31450+100(x-2)+62500x?2
≥31450+2100×62500=350,
当且仅当100(x-2)=62500x?2,
即x=27时,y有最小值350.
答:应该派27名消防员前去救火,才能使总损失最少,最少损失为350元.