Raymond B. answered 03/17/23
Math, microeconomics or criminal justice
c +p = 343
p =c-75
c-p=75
add 1st and 3rd equations above
c+c = 343+75
2c = 418
c=418/2
c = 209 chemistry books
p = 209-75= 134 psych books
Sanya R.
asked 03/17/23A textbook store sold a combined total of 343 chemistry and psychology textbooks in a week. The number of psychology textbooks sold was 75 less than the number of chemistry textbooks sold. How many textbooks of each type were sold?
Raymond B. answered 03/17/23
Math, microeconomics or criminal justice
c +p = 343
p =c-75
c-p=75
add 1st and 3rd equations above
c+c = 343+75
2c = 418
c=418/2
c = 209 chemistry books
p = 209-75= 134 psych books
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