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miroslav2012k
@miroslav2012k
July 2023
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1331. Знайдіть число а, якщо середне арифметичне чисел а і 8, дорівнює:
1) 9,6; 2) 10,2;
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Verified answer
1.
9,6 = (а + 8) / 2
19,2 = а + 8
19,2 - 8 = а
а = 11,2
2.
10,2 = (а + 8) / 2
20,4 = а + 8
20,4 - 8 = а
а = 12,4
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Answers & Comments
Verified answer
1.9,6 = (а + 8) / 2
19,2 = а + 8
19,2 - 8 = а
а = 11,2
2.
10,2 = (а + 8) / 2
20,4 = а + 8
20,4 - 8 = а
а = 12,4