Question

rational numbers

In a city, 7 by 20 of the population are women and 1 by 4 are children. find the fractionofnthe population of men?

plz and me

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Answer 1

Answer:

Step-by-step explanation:

the population of men = x/y

total population in fraction = 1/1

the population of women + the population of men + the population of children = 1/1

7/20 + 1/4 + x/y = 1/1

7 + 5/20 + x/y = 1

12/20 + x/y = 1/1

3/5 + x/y = 1/1

x/y = 1/1 - 3/5

     = 2/5

so the population of the men is 2/5