Matrix for rounding to the nearest whole number

Jul 2010
95
1
2016-05-28 21_24_58-Document1_ - Bluebeam Revu x64.png
Having trouble with part b. Is there a way to get a matrix calculation to round to the nearest integer?
 

HallsofIvy

MHF Helper
Apr 2005
20,249
7,909
There is NO matrix for "rounding to the nearest integer" and this problem does not ask you to find one. In fact, I see nothing here that requires matrix calculations at all. This is a matter of solving a system of linear equations. Of course, if you are used to using matrices to solve systems of differential equations, go ahead and do so. In (b),set up the matrix problem to solve for the number of people who go to the barber. If the answer doesn't happen to be an integer, round off after solving the matrix equation.