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Mathematics, 08.02.2021 05:30 BLESSEDKIDD1998
A textbook store sold a combined total of 450 psychology and biology textbooks in a week. The number of psychology textbooks sold was two times the number of biology textbooks sold. How many textbooks of each type were sold?
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A textbook store sold a combined total of 450 psychology and biology textbooks in a week. The number...
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