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Did I Do This Math Wrong Percentages Of My Grade

How do I calculate a final grade with percentages?

MethodFinal Grade = (Grade 1 x 60%) + (Grade 2 x 40%)Short ExamplesQ1. What is the Final Grade if Grade 1 is 95 and Grade 2 is 70?A1: Final Grade = (95 x 60%) + (70 x 40%) = 57 + 28 = 85Q2. What is the Final Grade if Grade 1 is 55 and Grade 2 is 43?A2: Final Grade = (55 x 60%) + (43 x 40%) = 33 + 17.2 = 50.2Long ExamplesQ1. What is the Final Grade if Grade 1 is 95 and Grade 2 is 70?M1: Final Grade     = (Grade 1 x 60%) + (Grade 2 x 40%)     = (95 x 60%) + (70 x 40%)      = (95 x 60/100) + (70 x 40/100)     = (5700/100) + (2800/100)      = (57) + (28)     = 85A1. Final Grade = 85Q2. What is the Final Grade if Grade 1 is 55 and Grade 2 is 43?M2: Final Grade     = (Grade 1 x 60%) + (Grade 2 x 40%)     = (55 x 60%) + (43 x 40%)      = (55 x 60/100) + (43 x 40/100)     = (3300/100) + (5020/100)      = (33) + (50.2)     = 50.2A2. Final Grade = 50.2

I got 7 out of 20 questions wrong what is my percentage?

65 percent right.
35 percent wrong.
7/20=x/100
20 times 5 equals 100. Multiply 7 by 5, you get 35. That's the amount you got wrong. 100-35 equals 65.

I got 15 questions wrong out of 50 questions. what is my percentage?

(50-15)/50 * 100 = 70%

EDIT: I cannot believe how many people are misreading the question. They said 15 out of the 50 are WRONG, not right. You assume nothing's weighted and that each question is 1pt, so the score is quite obviously 70% right....

What percentage grade would you get if you got 2/8 wrong on a test?

2/8 reduces to 1/4. 1/4 equals .25 or 25%
The best one can do is 100%, so if one subtracts what one gets wrong from a perfect score, what's left is the percentage right: 100% - 25% = 75%.
Another way to look at it is you got 6/8 right. That reduces to 3/4. 3/4 equals .75 or 75%.

How much will 15 percent affect my grade?

If u do good ur grade will remain in the 90s but if u did bad it could drop down a letter grade.But based on the A you got I would assume u did good enough to keep your A

If i missed 3 out of a 10 question quiz what is that percentage?

You got a 70% on the quiz (divide 7/10).

In the class, if your quiz has been added into the total, you do 58/70 which is about an 83%.

I how do I figure out my grade on a quiz as a percentage?

For whatever reason I can't remember how to do the math. This is my first grade in this History class. It was a ten question quiz, and I got one wrong or rather -1. The grade that is written on the paper is an eighteen. But what is the grade as a percentage or letter grade?

Help with averaging my grade i think my teacher was wrong?

The percentages are these as follows what should my grade really be?:

100%
100%
100%
100%
100%
60%
50%
100%
100%
100%
100%
100%
64%
100%
83%
85%
95%

thanks!

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