-8k= 48
divide 8
ANSWER: k = -6
Given :
The length of the rectangle, l = 8 cm/
The width of the rectangle, w = 75% of 8 cm


= 0.75 x 8
= 6
Therefore, the width of the rectangle is 6 cm.
13x-9=16
+9 +9
13x= 25
---- -----
13x 13x
x=1.92
Add nine to both sides of equation to cancel out the negative nine. Then, divide both sides by 13, which will result in the answer listed above.
First you need to find the radius. To do that you need to divide the diameter by two;
45 / 2 = 22.5
Then you plug the radius in the formula for a sphere. Which is...
V = (4 / 3)πr^3
First you need to find the volume with out pi
V = (4/3) π (45)^3
V= π (4/3) (91,125)
Your answer with out pi is...
V= (68,343.75) π cm^3
And with pi is...
V = 214,708.22 cm^3
22 5/8 ÷ 2 2/3 = 8.484375
So it can make 8.484375 pieces of ribbon