SOLUTION: A textbook store sold a combined total of 267 sociology textbooks in a week. The number of sociology textbooks sold was two times the number of physics textbooks sold. How many tex

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Question 1074273: A textbook store sold a combined total of 267 sociology textbooks in a week. The number of sociology textbooks sold was two times the number of physics textbooks sold. How many textbooks of EACH type were sold?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
267%2Fp=2, because , SOLD... 267 SOCIOLOGY TEXTBOOKS. The description plainly gives the quantity of Sociology textbooks sold. No variable needed for how many Sociology textbooks.

system%28p=133%2COR%2Cp=134%29
(Only whole number of books can be sold.)



*MAYBE BETTER*
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If the question were:
A textbook store sold a combined total of 267 sociology AND PHYSICS textbooks in a week. The number of sociology textbooks sold was two times the number of physics textbooks sold.

... then s for how many Sociology, p for how many of Physics;

system%28s%2Bp=267%2Cs%2Fp=2%29

2p%2Bp=267

3p=267

ANSWER:
system%28p=89%2Cs=178%29