[計量] A developer has land that ...
又來請問大大了
(感激)
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 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 tha value of x?
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