Tolong dibantu ya kakak saya kurang ngerti no. 11-20:((beserta jalan kerja nya ya kakak:)

Tolong dibantu ya kakak saya kurang ngerti no. 11-20:((beserta jalan kerja nya ya kakak:)

11. B. 2

12. v = p x l x t

= 15 x 10 x 9

= 1.350 cm (A)

13. t = $frac{v}{p : x : l}$

t = 2.800 / ( 35 x 5 )

t = 2.800 / 175 = 16 cm (C)

14. v = p x l x t

= 12 x 5 x 5

= 300 cm (D)

15. 50 x 25 x 60 x 2/3 = 150.000/3 = 50.000 (A)

16. v = p x l x t

= 12 x 10 x 8

= 960 cm (A)

17. 13 x 4 = 52

9 x 4 = 36

8 x 4 = 32

52 + 36 + 32 = 120 (D)

18. v. kubus = s x s x s

= 8 x 8 x 8

= 512

512 x 12 = 6.144 (A)

19. t = $frac{v}{p : x : l}$

= 1.120 / ( 14 x 10 )

= 1.120 / 140 = 8 dm (B)

20. (B)