Answer:21
Step-by-step explanation:
Answer: A. It is more susceptible to bias than would be a simple random sample.
hope this helps
Answer:
20 dollars
Step-by-step explanation:
I think 20+20+20=60 then 60-40=20
City A and City B are about 76.5 miles apart because 51*1.5 = 76.5
Answer:
One month of gameplay costs $15
Step-by-step explanation:
Angie: 20 + 3x
Kenny: 20 + 2x
(20 + 3x) + (20 + 2x) = 115 --- add their costs together
(20 + 20) + (3x + 2x) = 115 --- collect like terms
40 + 5x = 115 --- simplify
5x = 75 --- subtract 40 from both sides
x = 15 --- divide both sides by 5
