Theater 60503

We will pay 445 euros for 50 tickets. How many cinema and theater tickets will we pay if one cinema ticket costs 4 euros and a theater ticket 11 euros?

Correct answer:

d =  35
k =  15

Step-by-step explanation:

k+d=50 4k+11d=445  k+d=50 4 k+11 d=445  d+k=50 11d+4k=445  Pivot:Row1Row2 11d+4k=445 d+k=50  Row2111 Row1Row2 11d+4k=445 0.64k=9.55  k=0.636363649.54545455=15 d=114454k=114454 15=35  d=35 k=15

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