I dont understand how to do matricies at all, please help.
7 1 1 0 1 4
0 2 6 times 5 -2 1
3 -2 1 -3 1 -8
2 8 1 times 0 1 -1
0 5 -2 8 2 4
Solve for x and y
-2 1 2 1 3 6 -6
3 2 4 times x 2 = 19 9
0 -2 4 3 -1 8 y
How to add them??
How do you find the determinant??
How do you find the inverse??
How do you simplify??
-5 -13 x= 3 1
2 5 -4 0
A hotel has 260 rooms- some singles and some doubles. The singles cost 35$ and the doubles cost 60$. Because of a math teacher's convention, all of the hotel rooms are occupied. The sales for this night are 14,000$. How many of each type of room does the hotel have???