Nilai a dan b adalah?minta bantuannya kakak kakak:))

Nilai a dan b adalah?minta bantuannya kakak kakak:))

Jawaban:

a/15 = 6/10

10a = 6 × 15

10a = 90

a = 9cm

6/10 = 12/(12+b)

6(12+b) = 12 × 10

72 + 6b = 120

6b = 120 – 72

6b = 48

b = 8cm

Jawaban:

a= 9 cm

b=8 cm

Penjelasan dengan langkah-langkah:

$frac{a}{6} = frac{15}{10} \ 90 = 10a \ 9cm = a$

$frac{15}{12 + b} = frac{9}{12} \ 180 = 108 + 9b \ 180 - 108 = 9b \ 72 = 9b \ 8cm = b$