- The sample size is 64.
- The point estimate of the population proportion is 0.625.
-The margin of error is approximately 16%.
2x1=2
2+1=3/2
=3/2 is the answer
Answer:
Step-by-step explanation:
let the sam's age be x
2x+5=3x-1
5+1=3x-2x
6=x
therefore sam's age is 6.
Answer:
34 classes
Step-by-step explanation:
First, subract 180 from 1200. You should get 1020. then do 1020/30. So 34 classes can watch the performance of 180 students.