Originally posted by knptmug at 2005-4-20 09:47 PM: ( m# ?) e$ ^/ g5 M0 M. Yset small watermelon: x, middle watermelon y and big watermeton z 2 ]# N8 ~" Q S: x, J8 |, r+ ?" Y0 Z$ T: a% G
two simultaneous equations are set up: F+ L/ Z5 [: o6 L; @/ l
0.5x+2y+5z=50 (1) 6 O& q# x" ?( y" r/ |; |x+y+z=50 (2) 5 V j5 `" S% E+ eEquation(1) means that the total amount paid is equal t ...