Question

ir of ling
Hence, the speed of the boat in still water is 8 km/h and the speed of the stream
Verification i Verify that the solution satisfies the conditions of the problem.
1. Solve the following pairs of equations by reducing them to a pair of linear equations:
EXERCISE 3.6
is 3 km/h
wnstream
3
(11)
2
Tx
2
у
Fin
w
4
=
2 y
5
1
+ 3y =
(ID
1
y - 2
6
3
-
11
4y = 23
x-1
y - 2
7.x - 2y
5
(vi) 6x + 3y = 6xy
y
th
(40)
8x + 7y - 15
2x+4y= 5xy
ry
2
1
1
3
10
(viii)
II
3x + y
3x - y
4
(vii)
x+y
xy
1
1
15
5
-
=-2
=
2(3x + y)
2(3x - y)
8
x+y x-y
2. Formulate the following problems as a pair of equations, and hence find their solutions:
downstream 20 km in 2 hours, and upstream 4 km in 2 hours. Find her​

Answer 1

Answer:

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Step-by-step explanation:

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