Question

Kakak bantu saya mengerjakan pr tapi pake cara ya

Answer 1

Verified answer

27.
1,5 jam = 1,5 x 60 = 90 menit
perbandingan
25 : 90 = 5 : 18 (dibagi 5)
jawaban D

28.
35% = 35/100 = 0,35
tidak ada jawaban

29.
24 = 2³ x 3
54 = 2 x 3³
90 = 2 x 3² x 5

Faktor persekutuan = 2 x 3 = 6
jawaban A

30.
3(2x - 4y) - 5(2x + 3y) = 6x - 12y - 10x - 15y = -4x - 27y
tidak ada jawaban

31.
(8² + 3²) + (2³ + 4³) = 64 + 9 + 8 + 64 = 145
jawaban A

32.
(5³ + 3²) - (4² + 9²) = (125 + 9) - (16 + 81) = 134 - 97 = 37
jawaban A

33.
L = 1/2 x D1 x D2
L = 1/2 x 4 x 16,5
L = 33 cm²
jawaban A

34.
Luas Selimut = 2.π.r.t
1.320 = 2 . 22/7 . r . 15
9.240 = 660 r
r = 9.240 / 660
r = 14 cm

jawaban A