Question

Please answer this for me

Answer 1

$\huge \fcolorbox{green}{red}{ \blue{x = 7}}$

Step-by-step explanation:

QUESTION :-

Find x if,

$\sf \frac{x}{ \sqrt{1225} } = \frac{1.4}{x}$

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SOLUTION :-

$\sf \frac{x}{ \sqrt{1225 } } = \frac{1.4}{x} \\ \\ \sf = > \frac{x}{ \sqrt{35 \times 35} } = \frac{1.4}{x} \\ \\ = > \sf \frac{x \times x}{ \sqrt{ {35}^{2} } } = 1.4 \\ \\ \sf = > \frac{ {x}^{2} }{35} = 1.4 \\ \\ = > \sf {x}^{2} = 1.4 \times 35 \\ \\ = > \sf {x}^{2} = 49 \\ \\ \sf = > \sqrt{ {x}^{2} } = \sqrt{49} \\ \\ = > \sf {x}^{} = \sqrt{7 \times 7} \\ \\ = > \sf \: x = \sqrt{ {7}^{2} } \\ \\ \sf = > \underline \bold{ x = 7}$

So,

The value of x is 7.

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Hope it helps.

#BeBrianly