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Nataly [62]
3 years ago
5

I need help someone explain?????

Mathematics
1 answer:
Hunter-Best [27]3 years ago
5 0
In 9, the error is that the 276 should be the numerator, not the denominator, because in the proportion Elisa made, the number of students is the numerator and the number of teachers is the denominator. 

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20). If 5X = 20, then X = 4
kondaur [170]
Correct my guy. Keep up the great work
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Read 2 more answers
Eric used to practice football for 90 minutes every day. Now, he practices 200% as many minutes as he used to. How many minutes
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so cross multiply 90 and 200 and x and 100
giving you 18000 = 100x
divide both sides by 100
180=x
4 0
4 years ago
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