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Mathematics, 21.06.2019 17:30, gungamer720
Nine more than four times a number is the same as one less than twice the number. find the number?
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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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What the answer to -4.5...
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