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12.10.2020 •
Mathematics
A recording studio is forming a jazz quartet. How many different jazz quartets consisting of a saxophone player, an electric keyboard player, a bass player, and a drummer could it form
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Ответ:
EXPLANATION:
because there is 5 quartets
Ответ:
25 children and 75 adults
Equation 1:a + c=100
Equation 2: 3a + 2c=275
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