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kkurt [141]
3 years ago
8

Can someone plz help me solved this problem I need help plz help me! Will mark you as brainiest!

Mathematics
1 answer:
shusha [124]3 years ago
6 0

Answer:

11

4

Step-by-step explanation:

3 hrs to travel 45 miles downstream

4 hrs to travel 28 miles upstream

speed of boat in still water= s

speed of the current= c

  • s+c= 45/3= 15
  • s-c= 28/4=7

added up the 2 equations, we get:

  • 2s= 22
  • s= 11 mph
  • c= 4 mph
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