<span><span>
</span><span><span>Calulate
Cylinder Volume: remember; Vcyl = 3</span><span>.14(r)2h
</span></span></span>
<span><span><span /></span></span><span>
<span>Vcyl = 3.14 (45mm)2 600 mm </span> </span>
<span>
<span>Vcyl = 3.14
(2025mm2) 600mm</span>
<span>Vcyl = 3815100 mm3 or 3.8 x106
mm3</span>
</span>
<span>
</span><span>
Next
calculate the percentage of volume taken up by styrofoam balls
</span>
<span>
</span><span>
<span>3815100 x
20/100 = 763020 </span>
<span> Vstyroballvol = 763020mm3 </span></span>
<span><span />
</span>{as a check calculate}<span>
</span>
<span>
<span>80%
3815100 x 80/100 = 3052080 mm3</span>
</span>
<span>
</span><span><span>20%
3815100 x 20/100 = 763020 mm3 </span></span>
<span>
</span><span>100% = 80%
+ 20% = 3815100 mm3 </span>
<span /><span>
<span>Now calculate the Volume of the Sphere: Vsphere = 4/3*3.14*(r)3 </span></span>
<span>
</span><span>
<span>Vsp = 4/3*3.14*(15mm)3 </span></span><span>
<span>Vsp = 4/3*3.14*(3375)</span>
<span>Vsp = 14130 mm3 </span></span>
<span><span> for 1 stryofoam ball</span>
</span>
<span /><span>
<span>Lastly
divide the amount of 20% vol of cylinder
by one ball volume</span>
<span> <u /></span></span>
<span><span><u> 763020mm3</u> / 14130mm3
</span>
</span>
<span>= 54 styrofoam balls will fill or
are in the tube.
Answer</span>