Math, asked by malikwasim1920, 6 days ago

the price of a doll and chair is rupees 600 the doll self separately for rupees 60 more than the chair what is the price of the chair ​

Answers

Answered by saheli123
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

Step-by-step explanation:

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Answered by ℳҽօաա
6

Answer:

Let the price of a chair be x and that of a table be y.

By the given conditions,  

  • x + y = 5000 ... ...(1)
  • y = x + 2000 ... ...(2)

Substituting y = x + 2000 in (1), we get  

  • x + x + 2000 = 5000
  • or, 2x = 3000
  • or, x = 1500

Putting x = 1500 in (2), we get  

  • y = 1500 + 2000
  • or, y = 3500

Answer:  

  • a) price of a chair is Rs. 1500
  • b) price of a table is Rs. 3500

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