Solution
3 )
A nation imported 21,000 vehicles per month of LEPO brands, TAES and DROF, priced at 12,000, 15,000 and 20,000 € respectively. If total imports amounted to 332 million euros and brand LEPO imported 40% of the sum of the other two brands, how many vehicles of each brand come into this country? Solution 
4)
Sea 
matrix, calculates the value A 10 . Solution
| 5)  studied the range of the matrix below depending on the parameter k : | Solution |
| 6)  A factory produces two types of washing machines A and B, in three finishes: N, L and S. Model A produces 400 units in the finished N, 200 units in the L and 50 units finished in finishing S. Model B produces 300 units in the finished N, 100 units L and 30 units finished in finishing S. The finish N requires 25 hours of workshop and 1 hour of administration, L finish requires 30 hours of workshop and 1.2 hours of administration, and finishing S requires 33 hours of workshop and 1.3 hours of administration. a) Represents all this information into two matrices. b) Find a matrix that expresses the hours of workshop and administration used for each of the models. Solution | |
| jb 
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