Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
?
Lv 5
? asked in Education & ReferenceStandards & Testing · 7 years ago

Can anyone help me to work out this average?

I need to work out what my grades are. Basically I get 4 marks for the year and they have to be averaged out to get my final mark which can be translated into the grade. I can do that basic average, but I get confused when it comes to credits. Two of my sets of marks are worth 40 credits, whereas the other two are worth only 20. Look:

Mark: 56 (credit 40)

Mark: 54 (credit 20)

Mark: 69 (credit 40)

Mark: 61 (credit 20)

So the marks which are 56 and 69 are worth more than the other two, right? I'm so confused, can someone help me work this out to find the average mark?

Thanks so much.

2 Answers

Relevance
  • Anonymous
    7 years ago
    Favorite Answer

    56/100 = X/40

    Solve for x: 100x = 56*40, so x=56*40/100.

    x is your mark out of 40.

    Do that for the other three marks, and add up all the x's you get. That's your final mark.

    And no, I'm not doing that for you. Learn to do basic algebra yourself.

  • fcas80
    Lv 7
    7 years ago

    (56*40 + 54*20 + 69*40 + 61*20)/(40 + 20 + 40 + 20)

    = 60.83

Still have questions? Get your answers by asking now.