please answer question 15
Attachments:
himanshu504:
i think it is of PEARSON book.
i dont know
it came in test
oooo
where are you from
does that matters?
:)
Answers
Answered by
0
Sorry that I couldn't write it.I haven't got that time.
Sorry for posting from google and sorry if you donot like it.
No more pics available so I am writing it...
The last part......
From(6)
x-y=5
x=5+y
Putting value of x in (7)
x+y=11
(5+y)+y=11
5+2y=11
2y=6
y=3
Putting y=3 in (6)
x-y=5
x-3=5
x=8
So,x=8 and y=3 in the given equations.
Hence,
Speed of boat in still water=x=8km/hr
Speed of stream=y=3km/hr.
Sorry for posting from google and sorry if you donot like it.
No more pics available so I am writing it...
The last part......
From(6)
x-y=5
x=5+y
Putting value of x in (7)
x+y=11
(5+y)+y=11
5+2y=11
2y=6
y=3
Putting y=3 in (6)
x-y=5
x-3=5
x=8
So,x=8 and y=3 in the given equations.
Hence,
Speed of boat in still water=x=8km/hr
Speed of stream=y=3km/hr.
Attachments:
Hope you like it.
mark as brainliest
Thanks
why so formal?
What do you mean by formal?
Similar questions