8. In a mock school election 5/7 of the students voted. There are 1095 ballots. Write and solve a equation to find the number of
2 answers:
Alright, this is a fairly simple equation if you consider the overall question. As the question states, every 5 of out 7 students voted in the election. This means that five sevenths of all students in the school casted a vote.
Now, what can we do with this information? Well, we know that there were 1095 votes in total. This means that five sevenths of the school who voted represents 1095 students.
Can you see the equation you need to write now? Let's use a simple equation with the variable 's' to represent the total number of students:
* s = 1095
As I elaborated earlier, this equation essentially means "5/7 of the entire student population is 1095 students." Now, we just need to isolate the variable 's' to get our final answer.
<u>To get rid of the denominator, let's multiply both sides by 7:</u>
* 7 = 1095 * 7
5s = 7665
<u>Finish it off by dividing both sides by 5 to get rid of s's coefficient:</u>
<u /> =
s = 1533
There are 1533 total students in the school
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And that's it! If you have any questions about how I solved it, feel free to ask!
- breezyツ
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Given:
The given equation of a line is:
The line L passes through the points with coordinates (- 3, 1) and (2, - 2).
To find:
The gradient of the given line and the gradient of line L.
Solution:
Slope intercept form of a line is:
...(i)
We have,
...(ii)
On comparing (i) and (ii), we get
Therefore, the gradient of the given line is -4.
The line L passes through the points with coordinates (- 3, 1) and (2, - 2). So, the gradient of line L is:
Therefore, the gradient of the line L is .