Question 299339
At a certain high school, the respective weights for the following subjects are:
Mathematics 3, English 3, History 2, Science 2 and Art 1.
What is a student's average whose marks were the following: Geometry 89,
 American Literature 92, American History 94, Biology 81, and Sculpture 85?
:
We can do it this way:
Av = {{{((3(89) + 3(92) + 2(94) + 2(81) + 85))/11}}}
:
Av = {{{((267 + 276 + 188 + 162 + 85))/11}}}
;
////////////I made an addition mistake here, it should be: 978, not 987/////////
Av = {{{978/11}}}
which gives us:
Av = 88.9, which is answer that you want. I'm sorry!