Find the inverse of each matrix (+5 points if you do it by hand and show your work)
[-6 7] [-1 1]
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10
Find the inverse of each matrix (+5 points if you do it by hand and show your work)
[1 -1] [-1/2 1]
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20
Solve each system using inverse matrices
(-2,4)
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15
Solve the following for x and y
(2,5)
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25
Hogwarts is selling tickets to the quidditch finals. On the first day, the school sold 2 teacher tickets and 8 student tickets for a total of 90 knuts. Then the school took in 115 by selling 7 teacher tickets and 8 student tickets.
5 knuts for teacher tickets, and 10 knuts for student's tickets.
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10
Find the inverse of each matrix (+5 points if you do it by hand and show your work)