Please help me solve this and explain how you got the answer.
A 21 kiligram sample of rocks from the moon is composed of 40% oxygen and 19.2% silicon. How many more kilograms more is the oxygen than the silicon mass?
Thank you.
A 21 kiligram sample of rocks from the moon is composed of 40% oxygen and 19.2% silicon. How many more kilograms more is the oxygen than the silicon mass?
Thank you.
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40% of 21 =8.4 kg
19.2% of 21 =4.032 kg
therefore ans = 8.4 -4.032 =4.368 kg
19.2% of 21 =4.032 kg
therefore ans = 8.4 -4.032 =4.368 kg
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4.368 kg
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well first find the percentage in kgs and then find the difference