Answer:
Step-by-step explanation:
.95
I don't know what the easiest way to do this is. I just divide 19 by 2 and shift the decimal around. That doesn't sound very helpful.
The answer should be nearly one. It should be less than one, but not by much.
So divide 19 by 2 and you get 9.5 but you know that the answer is less than one, so shift it one more place to the left.
Answer:
Part A: 20 students
Part B: 4 hours
Step-by-step explanation:
Part A:
To find the number of students surveyed, we count the number of x there are in the graph.
students = 1 + 2 + 3 + 5 + 1 + 1 + 3 + 2 + 2 = 20
Part B:
To find the mean, we need to find the total number of hours volunteered first.
hours = 1x0 + 2x1 + 3x3 + 5x3 + 1x4 + 1x5 + 3x6 + 2x7 + 2x8 = 80
Now, we can find the mean. We divide the total number of hours volunteered by the number of students.
Mean = 80 ÷ 20 = 4
4(x-5)+2
__
4x. _
20 _
2
Your answer is 4x-5+2
Answer:
Step-by-step explanation:
So we have the expression:
And we want to find the value of the expression when t is -3.
So, substitute -3 for t:
Multiply:
Add:
Evaluate:
So, our answer is 9.
And we're done!