SOLUTION: In making an analysis of grass seed, a technician found 6.942 grams of pure seed and .178 grams of weed seed. What is the percent of pure seed in the sample?

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Question 415140: In making an analysis of grass seed, a technician found 6.942 grams of pure seed and .178 grams of weed seed. What is the percent of pure seed in the sample?
Answer by jamien1973(3) About Me  (Show Source):
You can put this solution on YOUR website!
Add the two samples together to give you 100%
6.942 + 0.178 = 7.12 = 100%
Divide 100% by the total sample to give percent for 1 gram.
100/7.12 = 14.044943% for 1 gram
Multiply by the pure seed value
14.044943 * 6.942
= 97.5%
You can verify by multiplying the 14.044943 by the weed seed.
14.04493 * 0.178
= 2.5%
97.5% + 2.5% = 100%