nilai rata-rata test matematika 10 siswa adalah 55 dan jika di gabung lagi dengan 5 siswa nilai rata rata menjadi 53.nilai rata rata dari 5 siswa tersebut adalah

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Grade: Education Mata Pelajaran: matematika

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USER1592

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X = 10(55)+5(a)/10+5
53 = 550+5a/15
795 = 550 + 5a
5a = 245
a = 49

jadi rata rata nya ialah 49

Dijawab pada tanggal 27 Agustus 2025

nilai rata-rata test matematika 10 siswa adalah 55 dan jika di gabung lagi dengan 5 siswa nilai rata rata menjadi 53.nilai rata rata dari 5 siswa tersebut adalah

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Jawaban (161)

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câte cuvinte și cate litere au cuvintele explicația,dulceața,deoarece?

the hard questions on Earth can you answer them for me?
A. what is the meaning of life?
B. why is water a solid, liqid, and gas?
C. where is heaven

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a.-48
b.-40
c.202
d.210
pake cara

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urgent va rog frumos