Question

pls answer faaast!!!

Answer 1

Answer:

3. let speed of boat be X km/h and speed of water stream be Y km/h.  

acc to question  

upstream: X-Y=2.67  

downstream:X+Y=4  

adding upstream and downstream 2X=6.67km/h  

X=3.335km/h  

putting value of X in downstream : Y=0.665km/h  

speed in still water i.e. X km/h=3.335 km/h.

Step-by-step explanation:

Answer 2

Answer:

a) (x+y)km/hr

b) (x-y) km/hr

c) 30/(x-y)

d) 44/( x+y)

e) pair of linear equations in two variables.