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3 May, 21:42

The population pf a city is 2,500. if the number of males is 240 more than the number of females how many males and females are there in the city

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  1. 3 May, 21:48
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    You need to represent the number of males in terms of females.

    Explanation:

    Since you know the number of males relative to females, it makes sense to represent the number of females as a variable, let's say f.

    So then the number of males is f+240 and we know that the number of males plus the number of females is 2500. Knowing this, we can write an equation: f + (f+240) = 2500. I put the number of males in brackets there just to make it easy to recognize.

    This equation can be condensed into 2f+240=2500 and then solved:

    2f=2500-240

    f = 2500-240 2

    f=1130

    Then, we know the number of females, and we can solve for the number of males from here using our male formula: males=f+240. You should then get 1370 as the number of males.

    Checking this answer, we see that 1130 + 1370 does equal 2500.
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