64% D+
If you miss 5 questions on a 20-question test, you answered 15 questions correctly. To find your grade, divide the number of correct answers (15) by the total number of questions (20) and then multiply by 100 to get a percentage. This results in a grade of 75%.
%*amount=answer .15(15%) * x = 42 thefore 42/.15= x x=280
15% of 42 = 42*15/100 = 6.3
75% of 42 = .75 x 42 = 32 questions right; you can miss 42-32 = 10 questions to get a 75
86%
87% or B+
66.67% D
64% D+
93.
your grade would be 80% or a B-
15 / 31 * 100% = 48.39% Usually you need to obtain 50% or over to pass an exam or test.
13/15 is about 87%, which is typically a "B". This may vary depending on the grading rules at your school
%*amount=answer .15(15%) * x = 42 thefore 42/.15= x x=280
i am in 8 grade and it depends on what school you go to for example in my school you can miss 10 days and you have to tell why and if you miss school more then 10 day the police will take the kids away that's how my school or you can just ask that from the main office of your school :)
15% of 42 = 42*15/100 = 6.3
75% of 42 = .75 x 42 = 32 questions right; you can miss 42-32 = 10 questions to get a 75