Question

4 out of 5 U.S. homeowners have a cell phone.what percent of homeowners do not have a cell phone?

Answer 1

Percent means parts out of 100
x/100=x%

4/5=x%
4/5=x/100
times 100 oth sides
400/5=x
80=x
80% do
100-do=do not have
100-80=20
answer is 20%

Answer 2

20%
4/5=0.8
Move the decimal twice to the right and you get 80.
Which equals 80%
Also percent equals 100.
Then you subtract 100 from 80 and get 20.