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3 years ago

12

A textbook store sold a combined total of 444 chemistry and biology textbooks in a week. The number of chemistry textbooks sold

was three times the number of biology textbooks sold. How many textbooks of each type were sold?

1 answer:

Arturiano [62]3 years ago

6 0

Answer: 333 chemistry books and 111 biology textbooks

Step-by-step explanation:

444=x+y

x=3y

4y=444

y=111

x=chemistry

y=biology

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