Tahlia and Elizabeth are sisters. Tahlia is 4 7 of her sister's age. In 8 years' time, the total age of the two sisters would be 38. What would be their total a
Matematika
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Pertanyaan
Tahlia and Elizabeth are sisters. Tahlia is
4
7
of her sister's age. In 8 years' time, the total age of the two sisters would be 38. What would be their total age 6 years later? (Express your answer in the simplest form) tolong dijawab secepatnya ga usah pake solusinya jg gpp
4
7
of her sister's age. In 8 years' time, the total age of the two sisters would be 38. What would be their total age 6 years later? (Express your answer in the simplest form) tolong dijawab secepatnya ga usah pake solusinya jg gpp
1 Jawaban
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1. Jawaban dhiorez
misal umur Tahlia sekarang = a
umur Elizabet sekarang = b
a = 4/7 (b)
(a + 8) + (b + 8) = 38
usia mereka 6 tahun yang akan datang?
(a + 8) + (b + 8) = 38
a + b + 16 = 38
a + b = 22
4/7 (b) + b = 22
11/7 (b) = 22
b = 14
a = 8
usia elizabet 6 tahun yang akan datang adalah 20 tahun
usia tahlia 14 tahun