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Express the following information in mat...

Express the following information in mathematical form using variables x and y.
The perimeter of a rectangle is 40 cm.

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NAVNEET PUBLICATION-LINEAR EQUATIONS IN TWO VARIABLES-EXERCISE
  1. For certain simultaneous equations in variables x and y, if Dy =6, D...

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  2. For certain simultaneous equations in variables x and y, if Dx =25, ...

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  3. Express the following information in mathematical form using variables...

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  4. Express the following information in mathematical form using variables...

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  5. Express the following information in mathematical form using variables...

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  6. Express the following information in mathematical form using variables...

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  7. Write one solution of the equation 2x-y+1=0.

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  8. Find the value of y in the equation 2x+y=7, if x=2. Find x if y =-1.

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  9. Solve the simultaneous equations 4x+3y=11,3x+4y=10

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  10. If |[[4,5],[m,3]]|=22 then find the value of m.

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  11. Find the values of Dx and Dy to solve the simultaneous equations 3x-4...

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  12. Find the value of K, if kx+3y=k-3 and 12 x +ky=k represent coincidents...

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  13. Solve the simultaneous equations 101x+99y=501, 99 x+101y=499

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  14. Complete the following activity to find the value of determinant:

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  15. If (2,-5) is the solution of the equation2x-ky=14, then find the value...

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  16. Complete the following table to draw the graph of the equation x-y=1:

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  17. Two numbers differ by 3. The sum of the greater number and twice the s...

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  18. The sum of two numbers is 7 and their difference is 5. Find the number...

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  19. Solve the following simultaneous equations using graphical methd: x+...

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  20. Solve the following simultaneous equations using graphical methd: x+...

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