A textbook story sold a combined total of 333 math and psychology textbooks in a week. The number of math textbooks sold was two times the number of psychology textbooks sold. How many textbooks of each type were sold?
A textbook story sold a combined total of 333 math and psychology textbooks in a week. The number of math textbooks sold was two times the number of psychology textbooks sold. How many textbooks of each type were sold?
Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter3: Math Models
Section: Chapter Questions
Problem 433PT: At a concert, $1,600 in tickets were sold. Adult tickets were $9 each and children’s tickets were $4...
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