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How would i figure out what my mark is if I have a 92%, but then got a 57% on a project...

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How would i figure out what my mark is if I have a 92%, but then got a 57% on a project worth 10%?

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Posted (Answer #1)

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Your mark is 92% of everything you have so far, which is only 90% of your overall mark.  That means of the 10% project, you have a further 57%.  

To find the final mark, you are work with the two marks together to get a total out of 100:

`92(0.90)+57(0.10)`    multiply then add

`=82.8+5.7`  now add

`=88.5`

The new percentage is 88.5%

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