Question: Carbon-11 has a half-life of about 20 minutes. If we start with 200 grams, how
much...
Mathematics, 10.04.2020 04:54 emmeaw245
Question: Carbon-11 has a half-life of about 20 minutes. If we start with 200 grams, how
much will be left after 3 hours?
A. 25 grams
B. 2.5 grams
C. 0.39 grams
D. 0.039 grams
Answers: 2
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Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?
Answers: 2
Mathematics, 22.06.2019 02:00, zitterkoph
Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.
Answers: 1
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