153.5g 126.47g 7.95cm2 12.05cm2
153.4g,126.6g,7.95cm^3,12.05cm^3设金的体积为V1,银的体积为V2V1+V2=2019.3V1+10.5V2=280解得V1=7.95cm^3,V2=12.05cm^3M金=19.3*7.95=153.4gM银=M-M金=126.6g
153.5g 126.47g 7.95cm2 12.05cm2
153.4g,126.6g,7.95cm^3,12.05cm^3设金的体积为V1,银的体积为V2V1+V2=2019.3V1+10.5V2=280解得V1=7.95cm^3,V2=12.05cm^3M金=19.3*7.95=153.4gM银=M-M金=126.6g