A mean average of 60 on 7 exams is needed to pass a course. on his first 6 exams, Adam received grades of 46,74,70,59,66 and 72. if his lowest grade of the exams already taken is to be dropped,what grade must he receive on his last exam to pass?
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to AVG at least a 60 his total test scores must add up to 420 b/c 420/7=60. therefore you can add his current test scores and then subtract that number from 420 to find the minimum he can receive on the 7th test
How can 89/100 be writen in a decimal
.89
To find out what grade Adam needs on his last exam to pass, we need to first calculate his average on the first 6 exams.
Step 1: Find the sum of the first 6 exam grades.
46 + 74 + 70 + 59 + 66 + 72 = 387
Step 2: Since Adam's lowest grade needs to be dropped, subtract the lowest grade (which is 46) from the sum.
387 - 46 = 341
Now, we need to calculate the average of the remaining grades.
Step 3: Divide the sum by the number of remaining grades (which is 5 because one grade has been dropped).
341 / 5 = 68.2
Adam's average for the first 6 exams is 68.2.
Now, let's determine what grade Adam needs on the last exam to pass.
Step 4: Multiply the desired passing average (which is 60) by the total number of exams (which is 7) to find the total points needed to pass.
60 * 7 = 420
Step 5: Subtract the sum of the first 6 exams from the total points needed to pass.
420 - 387 = 33
Adam needs to score at least 33 on his last exam to pass the course.