Originally posted by knptmug at 2005-4-20 09:47 PM: . _( e+ t# r4 W H# eset small watermelon: x, middle watermelon y and big watermeton z 3 x5 U" c3 L6 s) _7 Z* s ' o/ s" A. u' |+ I0 K- _) ztwo simultaneous equations are set up:0 u5 D% U9 L3 K: d% f, B+ m
0.5x+2y+5z=50 (1)/ c9 O2 ^' a/ K8 F: ~; w7 m, |* Q
x+y+z=50 (2) . z6 p& L7 x4 `- YEquation(1) means that the total amount paid is equal t ...