Answer :
To calculate the percentage of incorrect problems, subtract the number of correct problems from the total, and then divide by the total and multiply by 100%. The student got 40% of the assignment incorrect.
To determine the percentage of problems a student got incorrect on a homework assignment, we first identify the total number of problems and the number of problems they got correct. In this case, the total number of problems is 20, and the student answered 12 correctly. Next, we calculate the number of problems they got wrong: 20 total problems - 12 correct problems = 8 incorrect problems.
To find the percentage of incorrect answers, we use the formula Percentage = (Number of incorrect problems / Total number of problems) imes 100%. Plugging in our numbers, we have Percentage = (8 / 20) imes 100% = 40%. Therefore, the student got 40% of the homework assignment incorrect.
