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store solda combined totalof 412 biology and math booksin a week. the number of biology textbooks sold was three times the number of math books sold. how many textbooks of each type were sold?​
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store solda combined totalof 412 biology and math booksin a week. the number of biology textbooks sold was three times the number of math books sold. how many textbooks of each type were sold?​

User NielsNet
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The answer is that 103 math books were sold and 309 biology books were sold because if you multiply 103 by 3 you will get 309 but then you will still need to add the 103 that we found in the first place which would all add up to 412
User Gfjr
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