Statics

In a first semester unit there are four tests each of equal weight i.e. each worth 25%. Your average on the first three tests has been 62%. You need to get an overall average of 65% to proceed to the second semester.
What percentage should you try to get on the fourth test?
Please show your work.

asked by vicky
  1. looks rather straightforward ...

    (62+62+62+x)/4 = 65
    186+x = 260
    x = 74

    posted by Reiny
  2. Thanks Reiny

    posted by vicky

Respond to this Question

First Name

Your Response

Similar Questions

  1. Pre Algebra

    In Wilbur's math class, his grade is based on the average score of six tests, each worth 100 points. Wilbur always worries about his grade. He knows that his average on the first four tests is 88.5. What is the lowest average he
  2. Math

    In Wilbur's math class, his grade is based on the average score of six tests, each worth 100 points. Wilbur always worries about his grade. He knows that his average on the four first tests is 88.5. What is the lowest average he
  3. ACT Prep

    Question:So,far Michael has earned the following scores on five 100-point tests this semester: 72, 94, 85, 83, 97. What score must he earn on the sixth 100-point test of the semester if he wants to make an 88 point average for the
  4. Math

    During a semester, a student received scores of 76, 80, 83, 71, 80, and 78 on six tests. What is the student's average score for these six tests?
  5. Algebra

    In his mathematics class, John has taken 3 tests, each worth 20% of his total grade. His grades on those tests were 92%,83%,and 85%. He has an 100% average on his homework, worth 10% of his grade. All that remains is a final exam
  6. Chemistry

    If tests are worth 90% & quizzes 10%. What is my average is my test average is a 83 & my quiz average is a 92?
  7. math

    A student had an average of exactly 84 marks after taking three tests. On the fourth test, he scored 96%. The average for all four tests is A. 84 B. 86 C. 87 D. 82
  8. algebra

    help me please... The expression for figuring a student's average test score is (p/t), where p is the total points earned on all the tests, and the t is the number of tests. find a student's average when 623 points are earned on 7
  9. bridge

    Mr. Feng conducted five math tests. Trinity had completed four tests and scored 79, 78, 82, and 75. She wanted to achieve an average of 80% in her math tests. Write an inequality to find the minimum score Trinity can make on the
  10. Tribhuwan

    sheila has taken five tests so far this semester. if she gets a 70 on her next test, it will lower the average of her test scores by four points. what is her average now?

More Similar Questions