注:*是乘号,X和Y是未知数,3/5是5分之3,1.3/5是带分数1又5分之31.(X+3/5)*1/2=42.1.3/5+1/2X=103.[24.8X*(1-1/3)+16*1/2X]*12.5%=4604.240+Y/240+20%Y=70%第二个更正下,是1.3/5*5+1/2X=10
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/16 23:00:12
![注:*是乘号,X和Y是未知数,3/5是5分之3,1.3/5是带分数1又5分之31.(X+3/5)*1/2=42.1.3/5+1/2X=103.[24.8X*(1-1/3)+16*1/2X]*12.5%=4604.240+Y/240+20%Y=70%第二个更正下,是1.3/5*5+1/2X=10](/uploads/image/z/399112-16-2.jpg?t=%E6%B3%A8%3A%2A%E6%98%AF%E4%B9%98%E5%8F%B7%2CX%E5%92%8CY%E6%98%AF%E6%9C%AA%E7%9F%A5%E6%95%B0%2C3%2F5%E6%98%AF5%E5%88%86%E4%B9%8B3%2C1.3%2F5%E6%98%AF%E5%B8%A6%E5%88%86%E6%95%B01%E5%8F%885%E5%88%86%E4%B9%8B31.%28X%2B3%2F5%29%2A1%2F2%3D42.1.3%2F5%2B1%2F2X%3D103.%5B24.8X%2A%281-1%2F3%29%2B16%2A1%2F2X%5D%2A12.5%25%3D4604.240%2BY%2F240%2B20%25Y%3D70%25%E7%AC%AC%E4%BA%8C%E4%B8%AA%E6%9B%B4%E6%AD%A3%E4%B8%8B%2C%E6%98%AF1.3%2F5%2A5%2B1%2F2X%3D10)
注:*是乘号,X和Y是未知数,3/5是5分之3,1.3/5是带分数1又5分之31.(X+3/5)*1/2=42.1.3/5+1/2X=103.[24.8X*(1-1/3)+16*1/2X]*12.5%=4604.240+Y/240+20%Y=70%第二个更正下,是1.3/5*5+1/2X=10
注:*是乘号,X和Y是未知数,3/5是5分之3,1.3/5是带分数1又5分之3
1.(X+3/5)*1/2=4
2.1.3/5+1/2X=10
3.[24.8X*(1-1/3)+16*1/2X]*12.5%=460
4.240+Y/240+20%Y=70%
第二个更正下,是1.3/5*5+1/2X=10
注:*是乘号,X和Y是未知数,3/5是5分之3,1.3/5是带分数1又5分之31.(X+3/5)*1/2=42.1.3/5+1/2X=103.[24.8X*(1-1/3)+16*1/2X]*12.5%=4604.240+Y/240+20%Y=70%第二个更正下,是1.3/5*5+1/2X=10
(X+3/5)*1/2=4
(X+3/5)=4*2=8
x=8-3/5=7.2/5
1.3/5*5+1/2X=10
1/2x=10-8=2
x=2*2=4
[24.8X*(1-1/3)+16*1/2X]*12.5%=460
[24.8x*2/3+8x]*12.5%=460
[16.8/15x+8x]*12.5%=460
24.8/15X*12.5%=460
24.8/15x=460/12.5%=3680
x=3680/(24.8/15)
x=3680*15/368
x=150
240+Y/240+20%Y=70%
240-7/10=y/240+0.2y
239.3/10=y/240+2/10y
239.3/10=48/240*y
y=(239.3/10)/(48/240)
y=2393/2
y=1196.1/2
难倒不难,就是不知道算对没有