Posted by **Devon** on Sunday, February 12, 2012 at 10:43am.

A test has 125 items. Each correct answer earns 1point and 65% is a passing grade. If you get 42 answers wrong will you pass? Show working

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**Ms. Sue**, Sunday, February 12, 2012 at 10:46am
83 / 125 = 0.664 = 66.4%

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**Devon**, Sunday, February 12, 2012 at 10:56am
The reason why I am confused is because 81.25 / 125=65%. Therefore it means you got 43.75 questions wrong. Since 42 is fewer questions wrong you should pass...

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**Ms. Sue**, Sunday, February 12, 2012 at 10:58am
Right. As I showed above, 83 right is 66.4%

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**sheldan**, Monday, February 13, 2012 at 9:12pm
two charges of +2.6 micro c and -5.4 micro C experience an attractive force of 6.5 mN.what is separation between the charges?

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**Geena**, Tuesday, February 14, 2012 at 5:41pm
You know that the toal number of questions is 125. You know that you got 42 wrong. SO you have to subtract 42 form 125, and you get 83. To find a percentage you devide the total number correct by the total number of questions. So you would devide 83 by 125 and you get 0.664. Move the decimal over two places (because there are two zeros in 100) and you get 66.4%, so yes he does pass.

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