Posted by Nono on .
A machine takes 4.2 hours to make 7 parts. At that rate, how many parts can the machine make in 28.8 hours
48 parts
41 parts
172 parts
17 parts

Mathematics 
Bailey,
48 parts

Mathematics 
PsyDAG,
It might help to see the process.
7/4.2 = p/28.8
Divide both sides by 28.8 and solve. 
Mathematics 
Sasha,
The correct answer is 48 parts.xD

Mathematics 
Mystery Girl,
48 :)

Mathematics 
Mystery Girl,
Yes sasha!