a developer has land that has x feet of lake frontage. The land is to be subdivided into lots, each of which is to have either 80 feet or 100 feet of lake frontage. if 1/9 of the lots are to have 80 feet of frontage each and the remaining 40 lots are to have 100 feet of frontage each, what is the value of x  答案是4400

提问者: lovecandice428 2015-05-19 21:02

2个回答

1
channinghello 2015-09-01 12:56

设一共有y个lots,8/9lots有40个,那总共lots有45个,y=45。x=40*100+5*80=4400

0
Echo胖妞 2016-02-23 07:24

ding

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