isahbellas
21.08.2019 •
Mathematics
Sebuah pesawat terbang mempunyai tempat duduk tidak lebih dari 48 penumpang,setiap penumpang kelas utama boleh membawa bagasi 60 kg, sedangkan penumpang kelas ekonomi 20 kg, pesawat hanya boleh membawa bagasi 1.440 kg. harga tiket kelas utama 800.000.00 per orang dan kelas ekonomi rp.600.000.00 per orang,berapakah banyaknya penumpang masing masing kelas agar memperoleh hasil penjualan tiket sebesar besarnya
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Ответ:
x + y = 48
20x + 20y = 960
(60x - 20x) + (20y - 20y) = 1440 - 960
40x = 480
x = 12
x + y = 48
12 + y = 48
y = 48 - 12 = 36
Ответ: