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)
[0 -1/4] [-1/2 1]
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seesaw
Swap points!
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seesaw
Swap points!
Okay!
rocket
Go to first place!
Okay!
banana
Go to last place!
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5
Are the two matrices inverses?
No
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15
Solve the following for x and y
(2,5)
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5
Are the two matrices inverses?
Yes
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20
Solve each system using inverse matrices
(-1,5)
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20
Solve each system using inverse matrices
(-2,4)
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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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10
Find the inverse of each matrix (+5 points if you do it by hand and show your work)
