Question

DETAILSPREVIOUS ANSWERSFour added to the square root of the product of nine and a number is equal to seven. Find the number.9Need Help?Watch It

Answer 1

Let the unknown number be x

Hence, we have the mathematical interpretation to be:

`\begin{gathered} 4+\sqrt[]{9* x}=7 \\ 4+\sqrt[]{9x}=7\text{ , collect like terms} \\ \sqrt[]{9x}=7-4 \\ \sqrt[]{9x}=3 \\ \text{ Squaring both sides} \\ 9x=3^2_{}_{} \\ 9x=9 \\ x=1 \end{gathered}`

Therefore, the number is 1