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Q28: This year Henry will save a certain amountof his income, and he will spend the rest. Next year Henry will have no income, but for each dollar that he savesthis year, he will have 1 + r dollars available to spend. In terms of r, what fraction of hisincome should Henry save this year so that next year the amount he wasavailable to spend will be equal to half the amount that he spends this year? A.1/(R+2)
B.1/(2R+2)
C.1/(3R+2)
D.1/(R+3)
E.1/(2R+3)
Q35: If
7x/3 + a = 8 and a> 8, then, in terms of a, 3x/7= A. 1/a+ 1/8B. 1/8 - 1/aC. 1/（8-a） D. 3/7*(8 – a)E. 9/49*(8 – a)
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发表于 2014-5-4 17:47:48
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我脑袋发热了………………谢谢你！！！
