Jawab:
11. 5,4m
12. 5cm x 4cm
13. 14.400
14. 1600kg
15. 8750 liter
Penjelasan dengan langkah-langkah:
11. 7 1/2m + 1/2m + 1/2m + 1/2m = 9m
40% dipakai = 40/100 x 9m = 3,6m
sisa = 9m - 3,6m = 5,4m
12. Diket :
S = 1 : 300
Ps = 15m = 1500cm
Ls = 12m = 1200cm
Dit : P denah & L denah
Jwb :
P denah = Ps x S
= 1500 x 1/300
= 5 cm
L denah = Ls x S
= 1200 x 1/300
= 4cm
13. Bp = Bawang putih ; Bm = Bawang merah ; Bb = Bawang bombai
Bp : Bm = 5:7
Bb : Bm = 3 : 2
Bb - Bm = 4.200
Bb = 4.200 + Bm
Bb/Bm = 3/2 , jika Bb = 4.200 + Bm, maka,
(4200+Bm)/Bm = 3/2
3Bm = 8.400 + 2 Bm
Bm = 8.400
Bp/Bm = 5/7
Bp/8.400 = 5/7
Bp = 8.400 x 5 / 7 = 6.000
Jadi Bm+Bp = 8.400 + 6.000 = 14.400
14. Diket:
Lahan 1 = 2,4 ton = 2400 kg
Lahan 2 = 18 kwintal = 1800 kg
Dijual = 26 kwintal = 2600 kg
Sisa = 2400 kg + 2400 kg - 2600 kg = 1600 kg
15. Volume = 15m³ = 15000 liter
25 drum x 250 liter = 6250 liter
Sisanya = 15000 liter - 6250 liter = 8750 liter
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Jawab:
11. 5,4m
12. 5cm x 4cm
13. 14.400
14. 1600kg
15. 8750 liter
Penjelasan dengan langkah-langkah:
11. 7 1/2m + 1/2m + 1/2m + 1/2m = 9m
40% dipakai = 40/100 x 9m = 3,6m
sisa = 9m - 3,6m = 5,4m
12. Diket :
S = 1 : 300
Ps = 15m = 1500cm
Ls = 12m = 1200cm
Dit : P denah & L denah
Jwb :
P denah = Ps x S
= 1500 x 1/300
= 5 cm
L denah = Ls x S
= 1200 x 1/300
= 4cm
13. Bp = Bawang putih ; Bm = Bawang merah ; Bb = Bawang bombai
Bp : Bm = 5:7
Bb : Bm = 3 : 2
Bb - Bm = 4.200
Bb = 4.200 + Bm
Bb/Bm = 3/2 , jika Bb = 4.200 + Bm, maka,
(4200+Bm)/Bm = 3/2
3Bm = 8.400 + 2 Bm
Bm = 8.400
Bp/Bm = 5/7
Bp/8.400 = 5/7
Bp = 8.400 x 5 / 7 = 6.000
Jadi Bm+Bp = 8.400 + 6.000 = 14.400
14. Diket:
Lahan 1 = 2,4 ton = 2400 kg
Lahan 2 = 18 kwintal = 1800 kg
Dijual = 26 kwintal = 2600 kg
Sisa = 2400 kg + 2400 kg - 2600 kg = 1600 kg
15. Volume = 15m³ = 15000 liter
25 drum x 250 liter = 6250 liter
Sisanya = 15000 liter - 6250 liter = 8750 liter