(100×5%+200×12.5%)÷(100+200)
=(5+25)÷300
=10%
答:含盐率是10%.
一杯盐水100克,含盐率为5%,另一杯盐水200克,含盐率为12.5%,这两杯水合在一起,含盐率是多少?
一杯盐水100克,含盐率为5%,另一杯盐水200克,含盐率为12.5%,这两杯水合在一起,含盐率是多少?
数学人气:199 ℃时间:2019-09-23 09:19:50
优质解答
我来回答
类似推荐
猜你喜欢
- 1销量 用英语怎么说?用一个单词表达.
- 2Do you know Tom kept ___ by his parents until he was fifteen?
- 3it is the third time ___late this month .
- 4重写句子 Will he buy a house,a car,or a swimming pool if he wins a lot of money?
- 5(2+4+6+8+.+2002)—(1+3+5+7+.+2003)简便运算的步骤是?
- 6As soon as the exams were over, the students all went their _ ways
- 7高锰酸钾制氧气的化学方程式是什么?
- 88分之7除以9分之8-8分之3*8分之9
- 9经济基础决定上层建筑是谁提出的
- 10修改病句;他完成了一次又一次的任务.