Determine the value of y, if x is 81 . y=sqrtx-1 Answer: y=

Substitute x in equation: Substitute the given value of x into the equation. y = sqrt(x) - 1 Since x is given as 81, we substitute 81 in place of x. y = sqrt(81) - 1Calculate square root: Calculate the square root of 81. sqrt(81) = 9Find value of y: Subtract 1 from the square root of 81 to find the value of y. y = 9 - 1 y = 8

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Determine the value of
y, if
x is 81 .

y=sqrtx-1
Answer:
y=

Determine the value of $y$ , if $x$ is $81$ . $\newline$ $y=\sqrt{x}-1$ $\newline$ Answer: $y=$

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Math Problems

Grade 8

Solve equations with variables on both sides

Full solution

Q. Determine the value of

y

, if

x

81

\newline

y=\sqrt{x}-1

\newline

Answer:

y=

Substitute $x$ in equation: Substitute the given value of $x$ into the equation. $\newline$ $y = \sqrt{x} - 1$ $\newline$ Since $x$ is given as $81$ , we substitute $81$ in place of $x$ . $\newline$ $y = \sqrt{81} - 1$
Calculate square root: Calculate the square root of $81$ . $\sqrt{81} = 9$
Find value of $\newline$ $y$ : Subtract $\newline$ $1$ from the square root of $\newline$ $81$ to find the value of $\newline$ $y$ . $\newline$ $\newline$ $y = 9 - 1$ $\newline$ $\newline$ $\newline$ $y = 8$ $\newline$