Answer:
Part A: The survey is random and fair. Part B: It was random because the cafeteria is where they are going to change and 10th student entering isn't biased.
Step-by-step explanation:
Answer:
20%
Step-by-step explanation:
<span>the ratio of circumference to diameter is </span>[tex] \pi which equal <span>3.1415926535 regardless of radius</span>
Answer:
x=4, y=1
Step-by-step explanation:
We can solve this set of equations using elimination.
Multiply the first equation by 3:
Multiply the second equation by 5:
Now we take
Therefore, .
To solve for x, substitute y=1 into the second equation.
Hence, .
Answer:
McDonalds = 75/500
Popeyes = 50/500
chipotle = 225/500
Burger King = 125/500
Wendy's = 25/500
Step-by-step explanation: Since 20 people were in group questioned originally & you want to know how many from 500 you would divide 500 by 20 for 25. Then multiply by 25.