Mathematics, 24.07.2021 04:30 adriandehoyos1p3hpwc
Hiện nay A gấp 3 lần tuổi B, sau 10 năm nữa B sẽ bằng phân nửa tuổi A. Vậy hiện nay tuổi của A là bao nhiêu?
Answers: 3
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Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)
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Multiplying an even number of negative numbers gives an answer that is choose from:
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The angles below are supplementary. what is the value of x? a pair of supplementary angles is shown. one angle measures 7x + 33, and the other angle measures 70. 5.3 8.14 11 14.7
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Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?
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Hiện nay A gấp 3 lần tuổi B, sau 10 năm nữa B sẽ bằng phân nửa tuổi A. Vậy hiện nay tuổi của A là ba...
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