nathan smiled at 50 people one day and recorded that 36 people smiled back at him. Based on his observations how many people should nathan expect to return a smile if he smiles at 650 people over a period of time

Given :

Nathan smiled at 50 people one day and recorded that 36 people smiled back at him.

To Find :

How many people should Nathan expect to return a smile if he smiles at 650 people over a period of time.

Solution :

Ratio of people smiled by total number of people is :

Now, it is given that we have to use the given conditions.

Therefore, ratio will be same :

Therefore, number of smiles Nathan expect to return is 468.

b) 36

step-by-step explanation:

18 times 2 is 36

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.