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A textbook store sold a combined total of 240 chemistry and history textbooks in a week. The number of chemistry textbooks sold was two times the number of history textbooks sold. How many textbooks of
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A textbook store sold a combined total of 240 chemistry and history textbooks in a week. The number of chemistry textbooks sold

was two times the number of history textbooks sold. How many textbooks of each type were sold?

User Per Huss
by
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1 Answer

1 vote

Answer:

160 chemistry books and 80 history books

Explanation:

C=chemistry books sold, H=history books sold

C=2H

C+H=240, 3H=240, H=80, C=160

User Ballon Ura
by
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