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January 26, 2015

January 26, 2015

Posted by **sasha** on Thursday, October 18, 2007 at 9:01pm.

- math ( average) -
**Reiny**, Thursday, October 18, 2007 at 9:10pm(79+88+64+78+newtest)/5 = 80

solve for "newtest"

- math ( average) -
**Emily**, Thursday, October 18, 2007 at 9:11pmLet'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) -
**Ms. Sue**, Thursday, October 18, 2007 at 9:13pmThe 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) -
**Anonymous**, Friday, January 20, 2012 at 3:38pm91

- math ( average) -
**Jeremiah**, Wednesday, July 17, 2013 at 10:02pmWhat is the next step after adding and dividing?

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