15)175 m - 15,2 dm - 425
= (175×100) - (15,2×10) - 425
= 17.500 - 152 - 425
= 16.923 cm (tidak ada di opsi)
16)5 ²/5dasawarsa + 4½windu - 48bulan
= (27/5×10) + (9/2×8) - (48 : 12)
= 54 + 36 - 4
= 86 tahun (a)
17)V = 3 m³ = 3.000 liter
D = 50liter/2menit = 25liter/menit
W = V:D=3.000 : 25=120 menit= 2jam (c)
18)1,3m³ + 4,2 hl + 42 dm³
= (1,3×1000)+(4,2×100)+42
= 1.300 + 420 + 42
= 1762 liter (d)
19)J= 100 km
K= 80 m/jam
W= J:K= 100:80 = 1,25 jam
= 1 ¼ jam= 1jam15menit + 10menit= 1.25
tiba pukul= 07.30+01.25= 08.55 (b)
20)alas=√10²-8²=√100-64=√36= 6 cm
Luas= 1/2×axt = 1/2×6×8 = 24 cm² (a)
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15)175 m - 15,2 dm - 425
= (175×100) - (15,2×10) - 425
= 17.500 - 152 - 425
= 16.923 cm (tidak ada di opsi)
16)5 ²/5dasawarsa + 4½windu - 48bulan
= (27/5×10) + (9/2×8) - (48 : 12)
= 54 + 36 - 4
= 86 tahun (a)
17)V = 3 m³ = 3.000 liter
D = 50liter/2menit = 25liter/menit
W = V:D=3.000 : 25=120 menit= 2jam (c)
18)1,3m³ + 4,2 hl + 42 dm³
= (1,3×1000)+(4,2×100)+42
= 1.300 + 420 + 42
= 1762 liter (d)
19)J= 100 km
K= 80 m/jam
W= J:K= 100:80 = 1,25 jam
= 1 ¼ jam= 1jam15menit + 10menit= 1.25
tiba pukul= 07.30+01.25= 08.55 (b)
20)alas=√10²-8²=√100-64=√36= 6 cm
Luas= 1/2×axt = 1/2×6×8 = 24 cm² (a)