a：25g
b：75g能寫出翻譯和計算過程嗎?快些哦？0.9a+0.8b=82.5%*100a+b=100翻譯是：有兩種糖水，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%，則應(yīng)各加多少a和b。
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 su
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?
英語人氣：479 ℃時間：2020-02-01 06:58:47
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