Answer:
- y=-3/2x+4
- y=-3/2
- y=3x+2
- y=3/2+3
Step-by-step explanation:
Answer:
757.35
Step-by-step explanation:
1. We assume, that the number 891 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 891 is 100%, so we can write it down as 891=100%.
4. We know, that x is 85% of the output value, so we can write it down as x=85%.
5. Now we have two simple equations:
1) 891=100%
2) x=85%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
891/x=100%/85%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for what is 85% of 891
891/x=100/85
(891/x)*x=(100/85)*x - we multiply both sides of the equation by x
891=1.1764705882353*x - we divide both sides of the equation by (1.1764705882353) to get x
891/1.1764705882353=x
757.35=x
x=757.35
now we have:
85% of 891=757.35
1) The population
Is the set of all the terms that the teacher taught this semester and which he wrote down on the note cards and put in the paper bag.
2) The sample is every set of five cards that is selected by each student.
3) I think the sample is representative because all ther terms have the same probability of being selected.
Further, given that the cards are replaced every time all the students will face the same population when they are going to select a sample.
