Answer:
12.8km/hr
Step-by-step explanation:
Distance = 76.8km
Time = 6 hours
Speed = distance ➗ time
Speed = 76.8km ➗ 6 hours
Speed = 12.8km/hr
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b = 12
b/3 + 4 = 8
subtract 4 on both sides
b/3 = 4
multiply 3 with 4
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