M金+M铜=600
V金+V铜=52 (1)
M金=19.3V金
M铜=8.9V铜
所以
19.3V金+8.9V铜=600 (2)
(1)(2)式联解
V铜=38.8
V金=13.2
M金=13.2*19.3=254.76
M铜=38.8*8.9=345.32
含金量=254.76/600*100%=42.46%《50%
售货员的话是不可信.
M金+M铜=600
V金+V铜=52 (1)
M金=19.3V金
M铜=8.9V铜
所以
19.3V金+8.9V铜=600 (2)
(1)(2)式联解
V铜=38.8
V金=13.2
M金=13.2*19.3=254.76
M铜=38.8*8.9=345.32
含金量=254.76/600*100%=42.46%《50%
售货员的话是不可信.