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How many ball bearings, each with a diameter of 1 cm, can be made using 5.24 cm3 of molten steel?

4
7
8
10

Question

please help medal and fans awarded

How many ball bearings, each with a diameter of 1 cm, can be made using 5.24 cm3 of molten steel?

4
7
8
10

anonymous · Answer

7 would be your answer do you want me to explain?

ladiesman217 · Answer

sure

ladiesman217 · Answer

ya

$$\frac{ 4 }{ 3 }*3.14*r^{3}$$

anonymous · Answer

yup yup.  And you know that all of your ball bearings have a radius of .5 cm, and that all of them should be spheres.  

5.24 cm3 is in units of volume, so

5.24 / Vsphere = # ball bearings.  ^^


Sorry @Ineedhelpthankyou thought you had disappeared :P