Question

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

Answer 1

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