The population of a city is 12000.The ratio of female and male is 5 is to 7.Set up an equation between the population and females.

We have,Population = 12000Ratio of females to males = 5 :7Let the total population = xNow, females = y = 5x125x - 12y = 0

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5x:7y=12000
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12000-5x=7y
 
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