math hw help please
question: john's site asks readers to rate his articles with 1,2,3 points there were 38 votes, twice as many 3's as 1's, and the point total was 85. how many people gave each rating? ty alot(:
October 10, 2010
3 Comments • Newest first
how do i write it for a determinant / cramer rule?
Let x be the number of 1 point votes, y be the number of 2 point votes, z be the number of 3 point votes.
x+y+z = 38
2z = x
x+2y+3z = 85
Solve.
can u tell me the equations u used?