Write an equation relating the number of questions I get right on a test to the total score I will get if the test has 20 questions each with the same point value and the test is worth 100 points total. I know each question is worth 5 points so I would think that N (number right) =5n (to get the total score) but that is not an equation. What am I forgetting?
5n is correct it would be your score
I guess you could put s=5n
S meaning your total score
Your original equation is correct but if you want to makr if look more complete you can set y equal to your score and put 5n over 100 to show how many points you got right out of 100.
Your equation would look like this
Y=5n/100
To relate the number of questions you get right (N) to the total score you will get, you need to account for both the number of questions you get right and the total number of questions on the test (20 in this case). You are correct that each question is worth 5 points, so the point value of each correct question is 5.
The equation relating the number of questions you get right (N) to the total score (S) can be written as:
S = (N / 20) * 100
Let's break down this equation:
1. The fraction (N / 20) represents the proportion of questions you got right out of the total number of questions. For example, if you got 10 questions right, the fraction would be 10/20 or 0.5.
2. Multiplying the fraction by 100 will scale it up to a percentage, giving you the proportion of points you earned out of the total possible points.
So, to calculate your total score (S), you just need to divide the number of questions you get right (N) by the total number of questions (20), then multiply by 100.