Originally posted by knptmug at 2005-4-20 09:47 PM: ; ?1 L# M' X0 a0 H$ z( m( a4 I$ Eset small watermelon: x, middle watermelon y and big watermeton z3 d; B' V* ?! |7 N
6 S6 q' H1 O$ g, ~. C( h, g0 atwo simultaneous equations are set up:+ l# _5 N7 e6 j1 r/ n+ D! a
0.5x+2y+5z=50 (1)2 z- B) E: F/ c
x+y+z=50 (2) 2 G9 H2 w: h/ lEquation(1) means that the total amount paid is equal t ...