Math, asked by kavyar90, 8 months ago

Kindly ans with the steps​

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Answers

Answered by maanyata14
1

Answer:

I know the answer

Step-by-step explanation:

1) ratio= 1:3

Answered by merinmathew232
1

Answer:

1) 1 : 27

2)   y^{3} = 27x^{3}

Step-by-step explanation:

1) The cube of a number n : The cube of thrice the number n = n^{3} : (3n)^{3}

                                                                                                 = \frac{n^{3} }{ (3n)^{3}}

                                                                                              = \frac{n^{3} }{ 27n^{3}} ( Cancelling n^{3})

                                                                                             =1 : 27

2) x +y = 4x

    y = 4x -x

    y = 3x         Taking Cube on  both sides

    y^{3} = (3x)^{3}

∴    y^{3} = 27x^{3}

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