there are two kinds of sweet water A and B .a contains 270 g
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there are two kinds of sweet water A and B .a contains 270 grams of sugar and 30 grams water .B contains 400 grams of sugar and 100 grams of water.now i want to get 100 grams sweet water which is 82.5% concentrated .what is the weight of A and B respectively do we need?
a:25g
b:75g
再问: 能写出翻译和计算过程吗?快些哦?
再答: 0.9a+0.8b=82.5%*100 a+b=100 翻译是:有两种糖水,a和b,a含有270g糖,30g水。b含有400g糖,100g水。求,要100g糖水中的含糖量是82.5%,则应各加多少a和b。
b:75g
再问: 能写出翻译和计算过程吗?快些哦?
再答: 0.9a+0.8b=82.5%*100 a+b=100 翻译是:有两种糖水,a和b,a含有270g糖,30g水。b含有400g糖,100g水。求,要100g糖水中的含糖量是82.5%,则应各加多少a和b。
there are two kinds of sweet water A and B .a contains 270 g
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