The average atomic mass of a sample of an element X is 16.24 what is the percentages of isotopes 16X8 and 18X8
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The average atomic mass of a sample of an element X is 16.24 what is the percentages of isotopes 16X8 and 18X8

[From: ] [author: ] [Date: 13-05-28] [Hit: ]
Tomorrow is my final exam !!!16x+18y=16.x=.y=.......
Please help !!! Tomorrow is my final exam !!!

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y= percent 18
x=percent 16
16x+18y=16.24
x+y=1
x=.88
y=.12

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sorry but just collecting points
1
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