Answer
30 pounds of creme-filled chocolates, 5 pounds of chocolate covered nuts, and 10 pounds of chocolate covered raisins
Work Step by Step
creme-filled = x
chocolate nuts = y
chocolate raisins = z
System of equations:
$3x+2.7y+2.25z=45*2.8$
$x+y+z=45$
$2y=z$
Please see the screenshot of the work for the matrix.