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Mathematics, 21.06.2019 22:00
Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of
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Witch sequence shows a pattern where each term is 1.5 times the previous term
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Which property is demonstrated 15 + W + (-12)=15-12 + w...
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