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2. (64x6,25 + 12x12,5 + 6x25) / 10.500:(35x5)= (400 + 150 + 150) / 60
= 700/60
= 11 4/6
= 11 ⅔
3. a = 25, b = 8, c = 12
4a : (2b : 2c) x 1 ½
= 4(25) : ((2 x 8) : (2 x 12)) x 3/2
= 100 : 16/24 x 3/2
= 100 : 2/3 x 3/2
= 100 x 3/2 x 3/2
= 225
4.Sisa tabungan Andi
= ⅔ (3/5 x Rp. 125.000)
= ⅔ (Rp75.000)
= Rp 50.000
5. Jarak Sebenarnya
= 75 km
= 7.500.000 cm
Jarak pda peta = 6 cm
Skala
= Jarak Pda peta : Jrk sebenarnya
= 6 cm : 7.500.000 cm
= 1 : 1.250.000
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hasil akhir = 80/157
2. 450 + 150 + 150 / 10.500 : 175 =
= 700 / 60
= 11 40/60
= 11 ⅔
3. 4a : ( 2b : 2c ) × 1 ½
= 100 : ( 16 : 24 ) × 1 ½
= 100 : 16/24 × 1 ½
= 100 × 24/16 × 3/2
= 900/4
= 225
4. 2/5 × 125.000 = 50.000
= 125.000 - 50.000 = 75.000
1/3 × 75.000 = 25.000 --> hasil akhir
5. s = jp : js
= 6 cm : 75 km
= 6 cm : 7.500.000 cm
= 1 : 1.250.000