avelarelisavet avelarelisavet

26-03-2018
English

contestada

A certain city with a population of 400,000 had 1600 burglaries during the last year. If the number of burglaries increased by 200 this year and its burglary rate remained the same, by what number did its population increase?

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vojtadanhel vojtadanhel

26-03-2018

1600:400,000=1800:450,000
It increased by 50,000

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