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As an isotope of lead, 201Pb, has a half life of5.2 hours. How many hours ago was there 25% more of the substance? Round your answer to 2 decimal places.
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What can you determine about the solutions of this system
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Solve x+3y=6 and 4x-6y=6 by elimination . show work !
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Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?
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As an isotope of lead, 201Pb, has a half life of5.2 hours. How many hours ago was there 25% more of...
Mathematics, 24.02.2021 04:00
Mathematics, 24.02.2021 04:00