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    Mathematics
    Grade10
    Easy

    Question

    Solve for y.
    straight x space equals space fraction numerator square root of 2 straight y end root over denominator 26 end fraction

    1. 338 x2
    2. 676 x2
    3. 26 x2
    4. 13 x2

    hintHint:

    In this question, we have to find the value of y if the straight x space equals space fraction numerator square root of 2 straight y end root over denominator 26 end fraction . For this we will equate the equation provided. Firstly, we will cross multiply the equation, then square the equation and lastly, cross multiply to get the value of y.

    The correct answer is: 338 x2

      As space per space question comma space straight x space equals space fraction numerator square root of 2 straight y end root over denominator 26 end fraction C r o s s space m u l l t i p l t i n g comma space w e space g e t colon rightwards double arrow 26 space x space equals space square root of 2 y end root S q u a r i n g space b o t h space t h e space s i d e s comma space w e space g e t colon rightwards double arrow left parenthesis 26 straight x right parenthesis squared space equals left parenthesis square root of 2 straight y end root right parenthesis squared space rightwards double arrow 676 space x squared equals 2 space y A g a i n comma space c r o s s space m u l t i p l y i n g comma rightwards double arrow fraction numerator 676 space x squared over denominator 2 end fraction equals y not stretchy rightwards double arrow space straight y space equals 338 space straight x squared Hence comma space space straight y space equals 338 space straight x squared

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