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Mamont248 [21]
3 years ago
13

WILL GIVE BRAINLIEST

Mathematics
2 answers:
natali 33 [55]3 years ago
5 0
Speed boat departed 1.75 hrs after steam boat
1.8 hrs after speed boat departure, steam boat has sailed for a total: 1.8+1.75 = 3.55 hrs
steam boat's speed is 36.8 km/hr, so it has traveled: 3.55*36.8 = 130.64 km

speed boat is 86.9 km behind steam boat. so it is 130.64-86.9 = 43.74 km from port
speed boat's speed = 43.74/1.8 = 24.3 km/hr

goblinko [34]3 years ago
4 0

Answer:

Step-by-step explanation:

The speed boat departed 1.75 hrs after steam boat and sailed for 1.8 hrs.

So total time steam boat sailed = 3.55 hrs

Distance steam boat traveled = 3.55*36.8 = 130.64 km

Distance of speed boat from port = distance of steam boat - distance separating steam and speed boat

= 130.64-86.9

= 43.74 km

Speed of speed boat = 43.74/1.8

= 24.3 km / hr

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