Answer:
X= 24+7/8 | Y= 24-8x
<u>Steps for answers:</u>
<u>For X:</u>
1. Add y to both sides.
-8x=24+y
2. Divide both sides by -8.
x=-24+y/8
-----------------
<u>For Y:</u>
1. Add 8x to both sides.
-y=24+8x
2. Multiply both sides by -1.
y=-24-8x
<u>Done by NeighborhoodDealer :</u>
Volume of a cylinder=pi*r^2*h Diameter=0.400, Radius=0.400/2=0.200 | V of cylinder=pi*(0.200)^2*11.5=1.444
now this remain for 7 weeks...to get ink used for 1 week just divide it by 7
=1.444/7=0.207 | The answer is A
12x-3x=9x 9+7=16
9x+16=25x