 鲜花( 634)  鸡蛋( 5)
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Originally posted by knptmug at 2005-4-20 09:47 PM:
6 Y4 S: q6 x/ M H2 R% l, dset small watermelon: x, middle watermelon y and big watermeton z0 ?) Y* z" A/ B" t
: {- \4 j) D# j! g% ttwo simultaneous equations are set up:
; ]" K/ {3 V4 s/ u0.5x+2y+5z=50 (1)
( G( `2 B) H1 ~/ V4 b! v, @x+y+z=50 (2)
. o* U% q( R# m+ }Equation(1) means that the total amount paid is equal t ...
* p' _* r6 T5 D K- _& T7 |:lol::lol:0 T: w/ D$ F! k6 M: }
楼主的标题就是给你写的!% v, x, T7 X9 U3 J) t+ B
你看看我们智力超群的同学们回答的都多好啊! |
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