Question

kak bantuuuu,, pakai cara kerja,, yah kalau enggak jawabnya aku hapus.​

Answer 1

Jawaban:

1. A : B = 7:8

B = 48 kg

A = 7/8 × 48

= 42 kg

Jawaban (B)

2. C:D = 5:6

C + D = 77 kg

D = 6/5+6 × 77

= 6/11 × 77

= 42 kg

Jawaban (D)

3. 27 cm : 1,8 m

27 cm : 180 cm

3 : 20

Jawaban (C)

4. diket:

selisih boneka= 8

boneka Hana : Ira= 3:2

jumlah perbandingan= 3+2=5

selisih perbandingan= 3-2=1

Jumlah boneka= jumlah perbandingan/selisih perbandingan × selisih boneka

= 5/1 × 8

= 40 buah

Jawaban (C)

5. perbandingan kelereng Andi dan Seno 5:3

jumlah kelereng keduanya 24

Ditanya selisih?

maka, 5:3 = 24

5x + 3x = 24

8x = 24

x = 24/8

= 3

maka, kelereng Andi:

5.x = 5.3

= 15

dan kelereng Seno:

3.x = 3.3

= 9

Selisih= 15-9

= 6 buah

Jawaban (B)

6. =(4-3)/(4+3) × 560.000

= ⅐ × 560.000

= 80.000 rupiah

Jawaban (D)

7. 56/8 = 7 km/liter

84/7 = 12 liter

Jawaban (D)

8. diket:

jarak sebenarnya= 13 km = 1.300.000cm

skala (1:n) = 1:650.000cm

jarak pada peta= jarak sebenarnya/n

= 1.300.000/650.000

= 130/65

= 2 cm

Jawaban (A)

9. tak tau :(

10. HB = 20.000

U = 20% . HB

= 20/100 × 20.000

= 4000

HJ = HB + U

= 20.000 + 4000

= 24.000

Jawaban (B)

11. HJ = 1.800.000

R = 10/100 × 1.800.000

= 180.000

HB = HJ + R

= 1.800.000 + 180.000

= 1.980.000

Jawaban (C)