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Mathematics 13 Online
OpenStudy (mrcoolguy):

please help... http://prntscr.com/aeh1hg

OpenStudy (fortytherapper):

I would personally set up a proportion

OpenStudy (fortytherapper):

Then solve for x

OpenStudy (mrcoolguy):

how would i do that?

OpenStudy (fortytherapper):

So it says Lakewood is 21/25 of Pincrest's, so that would mean Pincrest is 25/25. You agree with that part?

OpenStudy (mrcoolguy):

yes

OpenStudy (fortytherapper):

We're also given that Pinecrest has a population of 18,000. That means Pincrest is 18,000/18,000. That's where we can set it up Since 25 = 18,000 according those fractions: \[\frac{ x }{ 18,000 }=\frac{ 21 }{ 25 }\] Now you can solve for X

OpenStudy (mrcoolguy):

okay give me a sec

OpenStudy (mrcoolguy):

x =15, 120

OpenStudy (fortytherapper):

Exactly

OpenStudy (mrcoolguy):

thanks

OpenStudy (fortytherapper):

Np

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