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Mathematics 21 Online
OpenStudy (anonymous):

Help again with ratio please!

OpenStudy (anonymous):

This one is different then the rest and my preview packet doesn't give any explanations on it.

OpenStudy (anonymous):

But I want to know how it works...

OpenStudy (anonymous):

yeah it is different

OpenStudy (anonymous):

the area goes with the square

OpenStudy (anonymous):

so you have \[\frac{\sqrt{18}}{\sqrt{50}}\] which we need to simplify

OpenStudy (anonymous):

I always have trouble with simplifying square roots like that.

OpenStudy (anonymous):

\[\sqrt{18}=\sqrt{9\times 2}=\sqrt9\times \sqrt2=3\sqrt2\] see if you can do something similar with the denominator

OpenStudy (anonymous):

or use simpler method \[\frac{\sqrt{18}}{\sqrt{50}}=\sqrt{\frac{18}{50}}=\sqrt{\frac{9}{25}}\]

OpenStudy (anonymous):

then it is real easy since you know the square root of 9 and also the square root of 25

OpenStudy (anonymous):

Yeah 3 and 5.

OpenStudy (anonymous):

so your ratio is \(3:5\)

OpenStudy (anonymous):

Right okay. Thank you. That makes sense ;)

OpenStudy (anonymous):

yw

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