A manufacturer produced x percent more video cameras in 1994 than in 1993 and y percent more video cameras in 1995 than in 1994.If the manufacturer produced 1000 video camers in 1993,how many did themanufacturer produce in 1995?
1. xy=20
2.x+y+xy/100=9.2
我选的是C,答案是B。。奇怪的,NN帮帮忙看下吧~~
呵呵,谢了。。
粗心了吧~
x percent = x%
95年产量=1000(1+x%)(1+y%)=1000(1+x%+y%+xy%%)=1000+10x+10y+xy/10...
真的是啊~~
忘加%还在想肯定是答案错了
呵呵,该打.......
谢了..
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