Mathematics, 13.02.2020 02:00 bcifuentes
How much water should we add to 20 kg of seawater to change its concentration from 3% to 2%?
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Mathematics, 21.06.2019 15:30
What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.
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Mathematics, 21.06.2019 16:30
International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?
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Mathematics, 21.06.2019 18:30
[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?
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Mathematics, 21.06.2019 19:30
The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions
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How much water should we add to 20 kg of seawater to change its concentration from 3% to 2%?...
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