Hayley Steele

2023-02-23

What is the square root of 125.

### Answer & Explanation

sarabol2zsr

Substitution method:
The two equations given are
$2x–y=5\dots ..\left(I\right)3x+2y=11\dots .\left(II\right)$
Multiplying (I) with 2 we get
$4x–2y=10\dots .\left(III\right)$
Adding (II) with (III)
$7x=21x=3$
Putting the value of x in (I) we get
$2×3-y=5⇒6-y=5⇒y=1$
Therefore, x=3 and y=1 is the correct answer.

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