Tolong bantu jawab beserta caranya​

Jawaban:

17. n = 5

banyaknya himpunan bagian = 2pangkat n

= 2 pangkat 5 = 32

——–C

18. A={1, 2, 3, 4, 5, 6, 7, 8, 9}

B ={3, 5, 7}

AπB= {3, 5, 7}

——A

19. Jumlah siswa boarding = 20

jumlah siswa full day = 12

perbandingan jlh siswa full day dgn boarding

= 12/20 = 3/5

——- C

20. 6/10 = 3/5

9/15 = 3/5

——- A

21. ayam 1 = 2 1/2 kg = 2,50 kg

ayam 2 = 1 1/4 kg = 1,25 kg

berat seluruh ayam = 2,50 + 1,25 = 3,75kg

——-C

22, Panen padi= 25 kg

dijual = 4,5 kg

sisa hasil panen =25,0

4,5 –

20,5 kg

———- A

23. panjang bambu = 4 1/4 = 4,25m

dipotong = 1 1/4 = 1,25 m

sisa bambu = 4,25 – 1,25 = 3m

sisanya dipotong menjadi 12 bagian sm panjang, maka 3m/12 = 1/4m

——–C