食堂买来大米2吨,比面粉数量的4倍少4/5吨,食堂买来面粉多少吨?
人气:416 ℃ 时间:2019-08-20 05:24:28
解答
你好:
设食堂买来面粉x吨
4x-4/5=2
4x=4/5+2
4x=2.8
x=0.7
答:食堂买来面粉0.7吨
推荐
猜你喜欢
- what are you doing this weekend?选什么?
- 若sinx≥根号3/2,求x范围
- Looks up at the man that she turned
- 设数列{an{bn}{cn},已知a1=4,b1=3,c1=5,a(n+1)=an,b(n+1)=(an+cn)/2,c(n+1)=(an+bn)/2.求数列{cn-bn}的通项公式(2)求证:对任意n属于N*,bn+cn为定值
- it's tall and strong,but still it has no flowers.
- 甲乙两人从AB两地相向而行,相遇时,甲所行路程为乙的2倍多1.5千米,乙所行路程为甲路程的5/2,两地相距?
- 己知直线ax+4y-2=0与直线2x-5y+b=0互相垂直于点(1,c),求a,b,c,的值
- What will he do if he spend all the money?改错