johnsonhood44 johnsonhood44

09-12-2020
Mathematics

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When 11 is subtracted from twice a number, the square root of the result is 4. Find the number.

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Candyzz100 Candyzz100

09-12-2020

Answer: I think 27/2

Explanation:

Let number = x:

√(2x - 11) = 4

Now to get x, we undo the square root by squaring both sides:

[√(2x - 11)]² = 4²

(2x - 11) = 16

2x = 27

x = 27 / 2

Hope this helps!

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