find × such that the ratio (28+k): (40+k)= 3:4
Matematika
louissamuel222
Pertanyaan
find × such that the ratio (28+k): (40+k)= 3:4
1 Jawaban
-
1. Jawaban Anonyme
Kelas 7 Matematika
Bab Aljabar
(28 + k)/(40 + k) = 3/4
4 (28 + k) = 3 (40 + k)
112 + 4k = 120 + 3k
4k - 3k = 120 - 112
k = 8
x = k = 8