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Solve for x and y : 7x - 4y = 49, 5x -...

Solve for x and y :
`7x - 4y = 49, 5x - 6y=57`

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Using elimination method, solve for x and y the following pair of equations : 7x-4y=49," "5x-6y=57

AGRAWAL PUBLICATION-SAMPLE PAPER 6-EXERCISE
  1. In the give figure, the sectors of two concentric circles of radii 7 c...

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  2. The mean of the following frequency distribution is 62.8 and the sum o...

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  3. Solve for x and y : 7x - 4y = 49, 5x - 6y=57

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  4. The sum of the reciprocals of Meena's ages (in years) 3 years ago and ...

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  5. A natural number when increased by 12, equals 160 times its reciprocal...

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  6. A number consists of two digits. When it id divided by the sum of i...

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  7. Two poles of equal heights are standing opposite each other on either...

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  8. Prove that: (tantheta/(1-tantheta))-(cottheta/(1-cottheta))=(costheta+...

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  9. State and prove Basic Proportionality Theoram (Thales Theoram)

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  10. Write the denominator of the rational number ( 771)/( 3000)in the for...

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  11. If two positive integers m and n are expressible as as m = ab^(2) and...

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  12. Find the value of the remainder, when x^(2) + (a + b) x + ab is divi...

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  13. If the sum of a positive number and its square is 240 , then find th...

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  14. If x, x - 2 and 3x are in AP, then find the value of x

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  15. Determine the 12^(th) term of the AP, 5, 8, 11, 14, . . . . . .

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  16. The sum and the product of the roots of the quadratic equations 2 x^(...

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  17. Find the ratio in which x-axis divides the join of (2,-3) and (5,6).

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  18. The distance between the points (a cos theta+bsin theta, 0) and (0, a ...

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  19. Plotting the points A ( - 4, 6) and B ( - 4, -6) on the coordinate a...

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  20. Check if the three sides of lengths 3 cm 6 cm and 8 cm can form a ri...

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