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Find (x)/(y), when x^(2) + 6y^(2) = 5xy....

Find `(x)/(y)`, when `x^(2) + 6y^(2) = 5xy`.

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To solve the equation \( x^2 + 6y^2 = 5xy \) and find \( \frac{x}{y} \), we can follow these steps: ### Step 1: Rewrite the equation We start with the equation: \[ x^2 + 6y^2 = 5xy \] ### Step 2: Divide by \( y^2 \) To simplify the equation, we divide every term by \( y^2 \): \[ \frac{x^2}{y^2} + \frac{6y^2}{y^2} = \frac{5xy}{y^2} \] This simplifies to: \[ \frac{x^2}{y^2} + 6 = \frac{5x}{y} \] ### Step 3: Let \( t = \frac{x}{y} \) Now, we can let \( t = \frac{x}{y} \). Therefore, \( \frac{x^2}{y^2} = t^2 \) and \( \frac{5x}{y} = 5t \). Substituting these into the equation gives: \[ t^2 + 6 = 5t \] ### Step 4: Rearrange the equation Rearranging the equation, we get: \[ t^2 - 5t + 6 = 0 \] ### Step 5: Factor the quadratic equation Now, we need to factor the quadratic equation: \[ t^2 - 5t + 6 = (t - 2)(t - 3) = 0 \] ### Step 6: Solve for \( t \) Setting each factor to zero gives us: \[ t - 2 = 0 \quad \text{or} \quad t - 3 = 0 \] Thus, we find: \[ t = 2 \quad \text{or} \quad t = 3 \] ### Step 7: Conclusion Since \( t = \frac{x}{y} \), we have: \[ \frac{x}{y} = 2 \quad \text{or} \quad \frac{x}{y} = 3 \] ### Final Answer: Therefore, the values of \( \frac{x}{y} \) are \( 2 \) and \( 3 \). ---
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ICSE-RATIO AND PROPORTION (INCLUDING PROPERTIES AND USES)-QUESTIONS
  1. Find (x)/(y), when x^(2) + 6y^(2) = 5xy.

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  2. If (3a+2b):(5a+3b)=18:29. Find a:b.

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  3. if a : b = 5 : 3, find (5a + 8b) : (6a - 7b).

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  4. Two numbers are in the ratio 3 : 5. If 8 is added to each number, the ...

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  5. (i) What quantity must be added to each term of the ratio 8 : 15 so th...

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  6. The work done by (x - 3) men in (2x + 1) days and the work done by (2x...

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  7. When the fare of a certain journey by an airliner was increased in the...

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  8. In a regiment, the ratio of number of officers to the number of soldie...

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  9. if (a)/(b + c) = (b)/(c + a) = (c)/(a + b) and a + b + c = 0: show tha...

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  10. if (a)/(b + c) = (b)/(c + a) = (c)/(a + b) and a + b + c ne 0, show th...

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  11. Find the compound ratio of : (i) 3a : 2b, 2m : n and 4x : 3y ...

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  12. Find the ratio compounded of the duplicate ratio of 5 : 6, the recipro...

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  13. Find : (i) the fourth proportional to 3, 6 and 4.5. (ii) the mean ...

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  14. Quantities a, 2, 10 and b are in continued proportion, find the values...

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  15. What number should be subtracted fram each of the numbers 23, 30, 57 a...

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  16. What should be added to each of the numbers 13, 17 and 22 so that the ...

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  17. if (a^(2) + c^(2)), (ab + cd) and (b^(2) + d^(2)) are in continued pro...

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  18. if p: q :: r, prove that p : r = p^(2): q^(2).

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  19. if a ne b and a : b is the duplicate ratio of a + c and b + c, prove t...

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  20. if a + c = mb and (1)/(b)+ (1)/(d) = (m)/(c), prove that a, b, c and d...

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  21. if q is the mean proportional between p and r, prove that : p^(2) -...

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