mohon bantuan nya, ada di foto harap jangan asal ya kk
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16. -1°C
17. 141°C
18 4 gelas
19. 2 : 3
20. Rp 77.000,00
21. 1 5/7
Penjelasan dengan langkah-langkah:
16. 20°C - 21°C = -1°C
17. -9°C + 15°C + 45/3 x 9°C
= 6°C + 135°C
= 141°C
18. banyak sirup
= 2/5 x 10 gelas
= 4 gelas
19. L : P = 14 : 21
= (14:7) : (21:7)
= 2 : 3
20. jual = 110/100 x 70.000
= 77.000
21. 2 1/5 x 1 3/12 : 3 3/6
= 12/5 x 1 1/4 : 3 1/2
= 12/5 x 5/2 : 7/2
= 6 x 2/7
= 12/7
= 1 5/7