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LiRa [457]
3 years ago
12

Greg practiced playing his clarinet for 12 minutes. He has practiced 40% of the amount of time he needs to practice today. How m

any more minutes does Greg need to practice today?
Mathematics
2 answers:
Nutka1998 [239]3 years ago
8 0
I believe the answer is he needs 30 more minutes. This would make him be practicing 42 minutes in all. I got this by doing 12 over x equal 40 over 100. then you cross multiply the two and you get 1200 over 40. That reduced is 30. Hope I helped! :)
frosja888 [35]3 years ago
8 0

Answer: 18

Step-by-step explanation:

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