Answer :
Okay, so how I solve this answer is by first figuring out how many people didn't know the name.
So, If 80% of 1,000 didn't know the name that means 800 people did not know the name.
(1000 x .8 = 800)
Then you take the total number of people, 1000, minus the people who did not know the name, 800, and you get the total number of people who did know the name which is;
(1000-800=200)
200 people knew the name of the congressman.
So, If 80% of 1,000 didn't know the name that means 800 people did not know the name.
(1000 x .8 = 800)
Then you take the total number of people, 1000, minus the people who did not know the name, 800, and you get the total number of people who did know the name which is;
(1000-800=200)
200 people knew the name of the congressman.
the answer to this question is 800 people knew the name of the congressman.
80% = x
100% = 1000 people
You do 80* 1000=80,000 then you d 80,000/100=800 and there is your answer,