Pliss Guyss bantuin besok Dikumpulin

Jawaban:

I.

20. 3/8 ; 0,56 ; 43% ; 6/10

=3/8(×25) ; 56/100(×2) ; 43/100(×2) ; 6/10(×20)

=75/200 ; 112/200 ; 86/200 ; 120/200

=75/200 ; 86/200 ; 112/200 ; 120/200

=C). 3/8 ; 43% ; 0,56 ; 6/10

21.2.000.000,00-600.000-500.000

= biayanya : C).900.000,00

II.

22. 65%

= 65/100

= 65/100 ÷ 5 = 13/20

23. 9 3/5 ÷ 0,16 × 35%

= 48/5 ÷ 16/10 × 35/100

= 48/5 × 10/16 × 35/100

= 480/80 × 35/100

= 16.800/8.000 ÷ 80

= 210/100 ÷ 10

= 21/10

= 2 1/10

24. p + 2 16/25 – 0,36 = 5,5

= p + 66/25 (×4) – 36/100 (×1) = 55/10

= p + 264/100 – 36/100 = 55/10

= p + 228/100 = 55/10

=(pindah ruas) p = 55/10 (×10)- 228/100

=(pindah ruas) p = 550/100 – 228/100

=(pindah ruas) p = 322/100

=Hasilnya (p = 322/100 atau 3,22)

25. 50 kg × 1/4 kg

= 50/1 × 1/4

= 50/4 ÷ 2 = 25/2

= 25/2 kg

= 10 5/2 kg

III.

26. 20 kg – 1/4 – 1/2

= 20/1 (×4) – 1/4 (×1) – 1/2 (×2)

= 80/4 – 1/4 – 2/4

= 79/4 – 2/4

= 77/4

= 19 1/4

27. 14,5 + 25 3/4 + 10 1/4 – 50,2

= 14,5 + 103/4 + 41/4 – 50,2

= 14,5 + 25,75 + 10,25 – 50,2

= 40,25 + 10,25 – 50,2

= 50,5 – 50,2

= 0,3 kuintal

IV.

28. C). Juring

29. C). Apotema