珍珠湾ART

标题: Exercise your brain a little. [打印本页]

作者: GiveATry 时间: 2007-10-21 23:10
标题: Exercise your brain a little.

What numbers represent A,B,C,D, and E ?www.ddhw.com

A,B,C,D, and E are five numbers that are greater than 10 and less than 100.

A-B-C-D-E=-35

A+B+C+D+E=217

作者: husonghu 时间: 2007-10-22 04:04
标题: 是不是会有许多解呀? [:-K][:-K][:-K]

是不是会有许多解呀?

作者: yinyin 时间: 2007-10-22 14:57
标题: 回复：是不是会有许多解呀? [:-K][:-K][:-K]

会有多解，但它们享有共同的A值。

作者: salmonfish 时间: 2007-10-23 01:48
标题: my teacher told me.......

I locked my brain in my drawer, because my teacher in high school once told us "for linear simultaneous equations, if number of variables is larger than the number of linear-independent eqns, don't use your brain, for that there will be more solutions than you can handle (infinite)".

作者: GiveATry 时间: 2007-10-23 22:42
标题: 回复： I must humbly beg [:>]

I’m afraid I made a fool of myself. I must humbly beg master’s forgiveness. I was not thinking clearly when I posed the problem.

To punish myself for my carelessness, I am going without lunch today.

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