Matematika (operasi hitung campuran dan volume bangun gabungan)

• 47

• 49

• 50

• 46

Answer explanation

2 x 4 + 16 - 6 + 31

= 8 + 16 - 6 + 31

= 24 - 6 + 31

= 18 + 31

= 49

• 38

• 36

• 35

• 37

Answer explanation

16 + (27 : 3) x 2 + 4

= 16 + 9 x 2 + 4

= 16 + 18 + 4

= 34 + 4

= 38

• 122

• 120

• 102

• 112

Answer explanation

27 + 53 + 46 x 2 - 50

= 27 + 53 + 92 - 50

= 172 - 50

= 122

• 96

• 59

• 60

• 69

Answer explanation

43 - 27 + 22 : 2 + (21 x 2)

= 43 - 27 + 11 + 42

= 16 + 11 + 42
= 69

• 177

• 107

• 117

• 77

Answer explanation

35 x 2 + 67 - 40 : 2

= 70 + 67 - 20
= 70 + 47 / 137 - 20

= 117

• 32

• 42

• 52

• 23

Answer explanation

14 x 3 + 27 x 2 - 64

= 42 + 54 - 64

= 96 - 64

= 32

Tentukan volume gabungan bangun ruang tersebut!

• 2.220cm³

• 2.020cm³

• 2.240cm³

• 2.420cm³

Answer explanation

Volume gabungan = Balok + Balok

p1 = 20cm p2=8cm

l = 10cm

t = 8cm

V = p x l x t

V = (20 cm x 10 cm x 8 cm) + (8 cm x 10 cm x 8 cm)

V = 1.600 cm³ + 640 cm³

V = 2.240 cm³

Tentukan volume bangun gabungan tersebut!

• 3.200cm³

• 2.300cm³

• 3.000cm³

• 2.030cm³

Answer explanation

Volume gabungan = Balok + Limas Segiempat

V Balok = p x l x t

= 20 cm x 16 cm x 8 cm

= 2.560 cm³

V Limas Segiempat = 1/3 x p x l x t segitiga

= 1/3 x 20 cm x 16 cm x 6 cm

= 640 cm³

V gabungan = 2.560 cm³ + 640 cm³

= 3.200 cm³

Tentukan volume gabungan bangun ruang tersebut!

• 9.269cm³

• 6.299cm³

• 9.629cm³

• 9.296cm³

Answer explanation

Volume gabungan =  volume balok + volume ½ tabung

V Balok = p x l x t

= 16 cm x 14 cm x 36 cm

= 8.064 cm³

V ½ tabung = ½ x π x r² x t

= ½ x 22/7 x 7 cm x 7 cm x 16 cm

= 1.232 cm³

V Gabungan = 8.064 + 1.232

= 9.296 cm³