Setup
0.8x + 0.4y = 50
0.1x + 0.2y = 10 - Multiply by -2 and add
get
0.6x = 30
x = 50 mg compound A
.1 (50) + .2y = 10
5 + .2y = 10
.2y = 5
y = 25 mg compound B
Once again the answer is 0. The reason is because the cube is 3 by 3 there is a cube 1 by 1 in the center of the big cube, because it is surrounded by other 1 by 1 cubes that cube doesn't get any sides painted. Therefor there is no possibility for all cubes to have at least one side painted.
Answer:

Step-by-step explanation:

Answer:
$7.10
Step-by-step explanation:
0.71 x 10= 7.10
Answer:
22, 68
Step-by-step explanation:
(Complementary means that the angles together equal 90 degrees)
x + x + 46 = 90
2x + 46 = 90
2x = 44
x = 22
22 + 46 = 68