Answer:
coefficent matrix
Step-by-step explanation:
P. 366
"If the column of constant terms is not included, the matrix reduces to that of the coefficent matrix of the system"
-1 -3 -1
9 -9 -1
-1 -3 4
44 [minutes] * 8 [times as many as April] = 352 [minutes in April]
Answer:
x=44x(6,000)x1,210
Step-by-step explanation:
-96-(-86) -10 -2
------------= ------= -----= -2
82-87 -5 1
So if Ann is a, then Tim has 11a brushes, and together they have a+11a=12a brushes.
if 12a=60, then a=60/12=5
o Ann has 5 brushes!