It was recently estimated that homes without children outnumber homes with children by about seven to five. If there are 2556 homes in a county, how many of them are homes without children?
Mathematics · Middle School · Thu Feb 04 2021
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According to the question, It was estimated that homes without children out of number of homes with children by about 7: 5
find:- If there are 2556 homes in a county, how many of them are homes without children=?
let us assume home without children are x
then, number of home with children are 2556-x
now compare the ratio :-
x / 2556-x = 7 / 5
cross multiple, x(5)= 7(2556-x)
5x=17892-7x
5x+7x=17892
12x=17892
x=17892/12
x=1491 (number of home without children )