[計量] 五月JJ請教
看板GRE (GRE入學考試)作者sayhello0914 (sayhello)時間15年前 (2011/05/27 00:14)推噓1(1推 0噓 1→)留言2則, 1人參與討論串1/3 (看更多)
以下一些五月計量JJ想請問大家>""<
題號對應QQ官方JJ
三、應用題
11. If the dimensions of a rectangular crate, in feet are 5 by 6 by 7,
which of the following CANNOT be the total surface area, in square
feet, of two sides of the crate?
(A)60 (B)70 (C)77 (D)84 (E)90 答案是E
題目看不太懂....
21. Mary's compensation every week is $400 plus 5 percent the portion
of her total *** weekly that above $1000, bob's compensation every
week is x persent of the total ***. if one week their total ***
both are T, and their compensations are the same.
What is T in terms of x？ 答：35000/(x-5)
我怎麼算都是 40000/(x-5)
38. 3x+2y=0，xy<0，問x的範圍 答: x大於-2/3小於0
痾...不是怎麼算都xy<0嗎
謝謝大家!
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