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A student has earned the following scores on four 100-point tests this marking period: 63, 72, 88, and 91.
What score must the student earn on the fifth and final 100-point test of the marking period to earn an average test grade of 80 for the five tests?
  • a)
    79
  • b)
    86
  • c)
    89
  • d)
    94
  • e)
    The student cannot earn an average of 80.
Correct answer is option 'B'. Can you explain this answer?
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A student has earned the following scores on four 100-point tests this...
The correct answer is b. To find the score on the fifth 100-point test that will yield an average score of 80, first calculate the total of the four scores already obtained: 63 + 72 + 88 + 91 = 314. To obtain an average of 80 on 5 tests, the total score of all 5 tests must be 80 × 5, or 400. The score needed on the last test is equivalent to 400 − 314, or 86. Answer choice A is the average of the 4 scores, rounded to the nearest whole point.
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A student has earned the following scores on four 100-point tests this marking period: 63, 72, 88, and 91.What score must the student earn on the fifth and final 100-point test of the marking period to earn an average test grade of 80 for the five tests?a)79b)86c)89d)94e)The student cannot earn an average of 80.Correct answer is option 'B'. Can you explain this answer?
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A student has earned the following scores on four 100-point tests this marking period: 63, 72, 88, and 91.What score must the student earn on the fifth and final 100-point test of the marking period to earn an average test grade of 80 for the five tests?a)79b)86c)89d)94e)The student cannot earn an average of 80.Correct answer is option 'B'. Can you explain this answer? for ACT 2025 is part of ACT preparation. The Question and answers have been prepared according to the ACT exam syllabus. Information about A student has earned the following scores on four 100-point tests this marking period: 63, 72, 88, and 91.What score must the student earn on the fifth and final 100-point test of the marking period to earn an average test grade of 80 for the five tests?a)79b)86c)89d)94e)The student cannot earn an average of 80.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for ACT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A student has earned the following scores on four 100-point tests this marking period: 63, 72, 88, and 91.What score must the student earn on the fifth and final 100-point test of the marking period to earn an average test grade of 80 for the five tests?a)79b)86c)89d)94e)The student cannot earn an average of 80.Correct answer is option 'B'. Can you explain this answer?.
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