25%的酒精水要加多少95%酒精=75% - 酒精
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By Edward Lewis
at 2010-08-03T00:00
at 2010-08-03T00:00
Table of Contents
25%的酒精水有350ml
要加多少95%酒精
會=75%酒精
請大大幫忙算一下 感謝
Update:
百分之25的藥用酒精350ml,要配成百分之75的藥用酒精,須加多少95%的酒精?
Update 2:
第2題
百分之95的藥用酒精200ml,要配成百分之75的藥用酒精,須加多少25%的酒精?
Update 3:
了解了!超清楚的回答!紅茶大大 感謝感謝!
要加多少95%酒精
會=75%酒精
請大大幫忙算一下 感謝
Update:
百分之25的藥用酒精350ml,要配成百分之75的藥用酒精,須加多少95%的酒精?
Update 2:
第2題
百分之95的藥用酒精200ml,要配成百分之75的藥用酒精,須加多少25%的酒精?
Update 3:
了解了!超清楚的回答!紅茶大大 感謝感謝!
Tags:
酒精
All Comments
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By Wallis
at 2010-08-07T21:06
at 2010-08-07T21:06
設加入x ML的95%酒精,即加入0.95x酒精&x-0.95x=0.05x水
算式:87.5+0.95x/350+x =75%
解x=875ml
2010-08-03 18:23:25 補充:
第二題
200*0.95+0.25x/200+x=0.75
解X=80
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