 鲜花( 634)  鸡蛋( 5)
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Originally posted by knptmug at 2005-4-20 09:47 PM:
, [+ T, t) i3 q3 Cset small watermelon: x, middle watermelon y and big watermeton z- ~1 q0 j- R' u
5 r; ~" @( w0 H7 g, Rtwo simultaneous equations are set up:9 H f9 `. A, @3 d" z5 `/ p
0.5x+2y+5z=50 (1)
8 x7 F8 G1 ^! C9 [" fx+y+z=50 (2)
* e& D X* s! R" V; LEquation(1) means that the total amount paid is equal t ...
, u) I1 F( Z# H5 T, n:lol::lol:" K% \' _+ o/ l& p/ M9 n: ^
楼主的标题就是给你写的!
3 ~) D3 U% L0 c" _你看看我们智力超群的同学们回答的都多好啊! |
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