Asurvey found that 12 out of every 15 people in the united states prefer eating at a restaurant over cooking at home. if 400 people selected eating at restaurant on the survey how many people took the survey?

500 people

Step-by-step explanation:

Let the total number of people took the survey = x

Since 12 out of every 15 people prefer eating at a restaurant.

Therefore, fraction of total person surveyed who preferred eating at restaurant = people

If the number of people selected eating at restaurant = 400

Hence, = 400

              x =

              x =

              x = 500

Total 500 people took the survey.

x/3-10=8

x/3=18

x=48