Question

Knowledge Check II
d. 317.69
1. Convert the following into paise.
@163.42
h. 35772
g. 346
a 3446.29
e 224.86
b. 728.68
223.57
2. Convert the following into rupees.
b. 73525 p
f. 86729 p
c. 16930 p
8
124208 p
d. 12970 p
h. 73500 p
(2.24038 p
e. 29425 p

Answer 1

Answer:

We have, 3x−5y−4=0

⇒3x−5y=4...(i)

Again 9x=2y+7

⇒9x−2y=7...(ii)

By Elimination Method:

Multiplying equation (i) by 3, we get

9x−15y=12...(iii)

Subtracting (ii) from (iii), we get

9x−15y=12

9x−2y=7

−13y=5

⇒y=−

13

5

Putting the value of equation (ii), we get

9x−2(−

13

5

)=7

⇒9x+

13

10

=7

⇒9x=7−

13

10

⇒9x=

13

91−10

⇒9x=

13

81

⇒x=

13

9