SOLUTION: A textbook store sold a combined total of 479 psychology and sociology textbooks in a week. The number of sociology textbooks sold was 47 less than the number of psychology textbo
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Question 1137666: A textbook store sold a combined total of 479 psychology and sociology textbooks in a week. The number of sociology textbooks sold was 47 less than the number of psychology textbooks sold. How many textbooks of each type were sold?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of psychology books sold
= number of sociology books sold
and
---------------------------
263 psychology books were sold
216 sociology books were sold
-----------------------------------
check:
OK
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