Thursday

April 24, 2014

April 24, 2014

Posted by **Ry** on Thursday, October 17, 2013 at 8:58pm.

- Pre Algebra -
**Anonymous**, Thursday, October 17, 2013 at 9:01pmIf you think about the 6 tests as one big test, there are 600 marks overall. Wilbur got 88.5 * 4 = 354 out of the first 400 marks.

Now, to get 90 overall, you need 0.9*600 = 540 out of 600 marks. Now, 540-354 = 186, so that he must get 186 out of the next 200 marks. This translates to an mean of 186/2 = 93 for each of the last 2 tests.

**Related Questions**

Math - In Wilbur's math class, his grade is based on the average score of six ...

pre algebra - my grade is 83.17 in pre algebra in college, but the final exam is...

math for 6 grade - write and solve an eqution for the following: there are 17 ...

Math - PLEASE HELP!!! In a basketball free-throw shooting contest, the points ...

Math - PLEASE HELP!!! In a basketball free-throw shooting contest, the points ...

Math - In a basketball free-throw shooting contest, the points made by Sam and ...

Need some ideas.... for a Pre-K class - I am teaching a Pre-K class this summer ...

pre-algebra - a math professor is teachin two classes. The first class has 100 ...

5tth grade math - every student in a second grade class sends a valentine to ...

pre algebra - the ratio of boys to girls in an art class is 3.5. there are 12 ...