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If 15 chaperones are needed for every 200 students using tables of ratios what number of chaperones are needed for 120 students
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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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Which of these angles are complementary? a. 45o and 45o b. 63o and 117o c. 45o and 135o d. 90o and 45o
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If 15 chaperones are needed for every 200 students using tables of ratios what number of chaperones...
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