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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
4 Answers
Relevance
- Anonymous8 years agoFavorite Answer
7/4.2 = x/28.8
x = (7/4.2)28.8 = 48
- ?Lv 78 years ago
A machine takes 4.2 hours to make 7 parts.
At that rate, how many parts can the machine make in 28.8 hours?
4.2/7 = 28.8/x
4.2x = 28.8*7
0.6x = 28.8
x
= 28.8/0.6
= 288/6
= 48
Answer choice:
48 parts
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