Originally posted by knptmug at 2005-4-20 09:47 PM: 2 l6 m0 H- @2 ?7 Uset small watermelon: x, middle watermelon y and big watermeton z L4 Q: x$ @$ d. z) v5 ]4 m
4 P4 _: [+ v. \2 `* ]two simultaneous equations are set up:0 k- u) g b S! c" \
0.5x+2y+5z=50 (1) $ F7 w- ]7 I1 E/ kx+y+z=50 (2), K0 Y2 b0 K2 N3 D: V9 R
Equation(1) means that the total amount paid is equal t ...