Seudónimo Seudónimo

19-06-2020
Mathematics

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

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

Respuesta :

mhanifa mhanifa

19-06-2020

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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