2thenumberofwomenonthesightseeingtourwaslessthan30 c

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Unformatted text preview: mon multiple of n and t is 105. ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ ­­­­­­­­­­­­­­【【【【B 【【【【(1)【【【【【【5 , 【【【【【【【【 ,【【【 (2)105=(5)(3)(7) , 【【【【【【【7 , 【【 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ ­­­­­­­­­­­­­­ 171. 16981­!­item­!­187;#058&010960 Is |x ­ y | > |x | ­ |y | ? (1) y < x (2) xy < 0 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ ­­­­­­­­­­­­­­【【【【 B 【【【【(1) y < x , (y= ­ , x=+) , (y=+ , x=+) , (y=­ , x=­) , 【 x=+ ­ , y=­ ­ , |x ­ y | > |x | ­ |y | , 【 (y=+ , x=+)【, |x ­ y | = |x | ­ |y | ,【【【【【 (2) xy < 0 , (y= ­ , x=+) or (y= + , x=­ ) , |x ­ y | > |x | ­ |y | , 【【 ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­ ­­­­­­­­­­­­­­ 172. 17130­!­item­!­187;#058&011022 If m, k, x, and y are positive numbers, is mx + ky > kx + my ? (1) m > k (2) x > y ­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­...
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This note was uploaded on 06/15/2012 for the course ECON 401 taught by Professor Kim during the Spring '12 term at East China Normal University.

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