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Science & Mathematics by Anonymous 2018-06-15 07:33:49
Social Science
A sample of X contains 20 g A, 15 g B, and 5 g C. What is the percentage A in the sample?
6 answers
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Anonymous
50%
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Anonymous
50%
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Anonymous
Ans. 50%
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Anonymous
Total mass is 20 + 15 + 5 = 40 grams 20 as a fraction of 40 is 20/40 = 1/2 = 50 /100 As a percentage A is 50% of the total
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Anonymous
50 percent. Since 20 + 15+ 5 = 40 so 20/40*100%=50
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Anonymous
50% genius. 20 is half of 40 (20 + 15 + 5 = 40)
