Friday

March 27, 2015

March 27, 2015

Posted by **Anonymous** on Friday, May 4, 2007 at 6:56pm.

the total for the first class is 70p and the total for the second class is 92n

so the combined total is 70p+92n

but we are also told that the average score for both classes is 86

i.e. 86(p+n)

so 70p+92n = 86(p+n)

70p+92n=86p+86n

-16p=-6n

16p=6n

then p/n=6/16

p/n = 3/8

**Answer this Question**

**Related Questions**

algebra 2 - The average (arithmetic mean) of the test scores of class of a class...

statistics - below is the test scores for students in a statistics class.80,65,...

Math - 105 91 82 59 97 72 72 88 81 What is the mode of these scores? A.46 B.72 C...

Algebra - The average mark on a test in an algebra class is 80. If the two ...

Math - Averages - The test average for Louis' calculus class is found by taking ...

Algebra - The 22 students present for a recent test in Ms. Huang’s class had an ...

Algebra - The class average on a math test was 82 and there are 8 students in ...

Algebra 1 - A teacher knows that 80% of her students will score no more than 5 ...

statistics - Thomas needs a b in his class. his current test scores are 88, 83, ...

statistics - A professor gave an aptitude test to a class of psychology students...