Question

You are collecting data to find out what the most popular lunch choice is. Each lunch period, you ask 15 students who buy lunch. There are 4 lunch periods a day. 25 students choose pizza. If there are about 600 students who buy lunch each day, about how many can you predict will buy pizza?​

Answer 1

250

Explanation:

1. Find the total amount of people interviewed

You asked 15 students over 4 periods of lunch. That means you have to multiply:

15 x 4 = 60. You asked 60 people total.

2. Solve

You know that 25 people chose pizza out of the 60 people that you interviewed. That would make a fraction: 25/60

Now, there are 600 people, and the question is asking you how many people will get pizza based on the ratio of 25/60

So, in this case, 25/60 = x/600

You have to multiply 60 by 10 to get 600 as your denominator.

So, similarly, you have to multiply 25 by 10 to keep the same ratio.

25 x 10 = 250

Hence, 250/600 people will buy pizza.

Hope this helps,

-jp524