Originally posted by knptmug at 2005-4-20 09:47 PM: ; `; l i4 G- H) A+ Nset small watermelon: x, middle watermelon y and big watermeton z & v* b$ q/ q* @" ^9 H+ c8 j 3 Y& i: v: d# L* Ctwo simultaneous equations are set up: % X* b' i" D) i0.5x+2y+5z=50 (1) 0 B2 C7 ~, c! b- S8 S& G% I3 jx+y+z=50 (2)4 U% @$ ^7 ~$ g
Equation(1) means that the total amount paid is equal t ...