Sea water

Seawater contains about 6.5% salt. How many dm3 of distilled water must we pour into 21 dm3 of seawater to get water with 1.2% salt?

Final Answer:

V =  92.75 dm3

Step-by-step explanation:

V1=21 dm3   6.5 %   V1 = 1.2 %   (V1+V) 6.5/100   V1 = 1.2/100   (V1+V)  6.5 V1=1.2 (V1+V) 6.5 21=1.2 (21+V)  1.2V=111.3  V=1.2111.3=92.75  V=4371=92.75=92.75 dm3



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You need to know the following knowledge to solve this word math problem:

algebrabasic operations and conceptsUnits of physical quantitiesthemes, topicsGrade of the word problem

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