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4. A) 5 × 9 = 45
B) 16 × 9 = 144
C) 50 ÷ 5 = 10
D) 78 ÷ 6 = 13

5. 0,2308 = 2308 per 10000
A – B = 2308 – 10000 = -7692

6. 5 apel × Rp 5470,00 = Rp 27350,00
4 alpukat × Rp 8275,00 = Rp 33100,00
7 jeruk × Rp 3225,00 = Rp 22575,00
Total biaya = Rp 27350,00 + Rp 33100,00 + Rp
22575,00 = Rp 83025

Semoga membantu ^o^

4. a. 5,43 x 8,65 = 5 x 9 = 45
b. 15,71 x 9,03 = 16 x 9 = 144
c. 49,83 : 5,01 = 50 : 5 = 10
d. 77,94 : 6,32 = 78 : 6  = 13

5. 0,230769230… = 0,2308 = 2308 : 10000 = 577 : 2500 = a : b
a – b = 577 – 2500 = -1923

6. 5 x 5.470  + 4 x 8.275 + 7 x 3.225 =  27.350 + 33.100 + 22.575 = 83.025

Semoga membantu! Maaf kalau salah.