Tolong pliss besok kumpulkan

Tolong pliss besok kumpulkan

Jawaban:

$a. : v = 200 times 40 times 50 = 400.000 \ b. : 640.000 = 200 times 40 times tkolam \ 640.000 = 8.000t \ t = frac{640.000}{8.000} = 80 \ t : sisa = t : kolam - t : air = 80 - 50 = 30$