math ( average)

posted by .

a student wants to get an average of 80 on the 5 tests to earn an A grade.on the 4 test he gets 79, 88,64,78. how much should he score on the 5th test so that he gets this average of 80?

  • math ( average) -

    (79+88+64+78+newtest)/5 = 80

    solve for "newtest"

  • math ( average) -

    still don't get it

  • math ( average) -

    Check my answer below.

  • math ( average) -

    Let's say the score of the 5th test her is x. To get an average of something, you add everything up and divide by the number of numbers (in this case, tests), right? So, this is how you would set this one up:

    79+88+64+78+x
    ------------- = 80
    5

    Can you solve the rest?

  • math ( average) -

    The student needs a total of 400 points on 5 tests to get an average of 80.

    He has a total of 309 on the first four tests. What score does he need on the fifth test to bring his total up to 400?

  • math ( average) -

    91

  • math ( average) -

    What is the next step after adding and dividing?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    A math teacher calculates grades as follows:Grade=[2 test averages+quiz average/3] After 3 tests and 2 quizzes your test average is 83 and your quiz average is 89. You took your fourth test today and noticed that your overall average …
  2. Computer Programing & Logic Design

    Submit pseudocode and a flowchart for the following programming exercise: Test Average and Grade Write a program that asks the user to enter five test scores. The program should display a letter grade for each score and the average …
  3. Math 208

    Grade Average A student scores 65 and 82 on two different 100-point tests. If the maximum score on the next test is also 100 points, what score does the student need to maintain at least an average of 70?
  4. programming

    Professor Merlin has asked you to help him. He has 5 students who have taken four tests. He wants a program where he can enter the students name and their four test scores. After entering all 5 students then he wants a grade report …
  5. Algebra 1

    In order to earn an A in a class, your test scores must average at least 92%. On the first 6 tests, you have an average of 91%. What score do you need to get on the last test to earn an A?
  6. Math

    In your​ class, you have scores of 73,85,76, and 92 on the first four of five tests. To get a grade of Upper C, the average of the first five tests scores must be greater than or equal to 70 and less than 80. a) Solve an inequality …
  7. Math

    After 4 tests, Amanda's average score was 88. What score must she earn on her next test to have a 5-test average?
  8. java programming

    Test Average and Grade Write a program that asks the user to enter five test scores. The program should display a letter grade for each score and the average test score. Write the following methods in the program: • calcAverage—This …
  9. Math

    In math class, a student has an average grade of 85% for five tests so far. What grade must that student earn on the next test to reach an average grade of 90% for all six tests?
  10. Math

    In order to get an A in a class, your test scores must average at least 92%. On the first 6 tests, you have an average of 91%. What score do you need to get on the last test to earn an A?

More Similar Questions