The square root of Eve's age is two more than the square root of Jamil's age. If Jamil is 9 years old, how old is Eve?

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14-07-2015
Mathematics

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The square root of Eve's age is two more than the square root of Jamil's age. If Jamil is 9 years old, how old is Eve?

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naǫ naǫ · Answer 1 · 2015-07-14T11:15:08+02:00

naǫ naǫ

14-07-2015

Jamil is 9 years old.
The square root of Jamil's age is √9=3.
Eve's age is x.
The square root of Eve's age is two more than the square root of Jamil's age.

[tex]\sqrt{x}=3+2 \\ \sqrt{x}=5 \\ (\sqrt{x})^2=5^2 \\ x=25[/tex]

Eve is 25 years old.

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