Question

A college football stadium holds 45,000 fans. In a random sample of 30 fans, 25 were wearing the colors of the home team. Predict the number of fans who are wearing the colors of the home team.

Answer 1

Answer to me is A I guess

Answer 2

A

Explanation:

Remark

Just as a guess, the answer should be A or B. It's always a good idea to estimate an answer so that if you get something really far away, you know it is incorrect.

Equation

Set up a proportion for the problem

26/30 is the basic ratio of the home fans wearing the right color

x/45000 is the ratio of those in the entire stadium.

Solution

26/30 = x / 45000 Cross multiply

30x = 26 * 45000 Simplify the right

30x = 1170000 Divide by 30

30x/30 = 1170000/30

x = 39000 And that is A