Mathematics, 28.01.2021 17:40 dubouuu
A store sells hardcover books for $8 and paperback books for $5. You buy 9 books, represented by the equation x + y = 9, where x is the number of hardcover books and y is the number of paperback books. The equation 8x + 5y = 57 represents the total cost. How many of each type of book did you buy?
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 22:00
Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b
Answers: 1
Mathematics, 21.06.2019 23:30
In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points
Answers: 1
Mathematics, 22.06.2019 00:00
David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?
Answers: 1
You know the right answer?
A store sells hardcover books for $8 and paperback books for $5. You buy 9 books, represented by the...
Questions
Social Studies, 03.08.2019 19:30
Mathematics, 03.08.2019 19:30
Mathematics, 03.08.2019 19:30
Mathematics, 03.08.2019 19:30
Mathematics, 03.08.2019 19:30
Physics, 03.08.2019 19:30
Computers and Technology, 03.08.2019 19:30
History, 03.08.2019 19:30
History, 03.08.2019 19:30
Chemistry, 03.08.2019 19:30
History, 03.08.2019 19:30
Mathematics, 03.08.2019 19:30
Social Studies, 03.08.2019 19:30
