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jessicagustama
21.07.2019 •
Mathematics
Acircle is represented by the equation below: (x − 5)2 + (y + 7)2 = 49 which statement is true? the circle is centered at (−5, 7) and has a radius of 7. the circle is centered at (5, −7) and has a diameter of 7. the circle is centered at (5, −7) and has a radius of 7. the circle is centered at (−5, 7) and has a diameter of 7.
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Ответ:
Ответ:
First equation for the number of ticket sold
a + c = 342
2nd equation for the total amount of money
12a + 5c = 2550
Solving the two equations simultaneously
a = 120 adult tickets
c = 222 children tickets