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zloy xaker [14]
3 years ago
15

5x+2y=7 7x+2y=5 i need it right

Mathematics
2 answers:
atroni [7]3 years ago
8 0
5x+2y=7 7x-2y=5 its subtract not add
aleksandr82 [10.1K]3 years ago
7 0
I solved it in the image below. 

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Answer:

6 hours

Step-by-step explanation:

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You then know that each of them got 102 candies, so now, you subtract 12 from from 102, since the teacher gave them that much in the beginning.

You're left with 90, so last step is to divide 90 by 15, since they collect 15 every hour, which you get left with 6. Meaning they collected candies for 6 hours

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3 years ago
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lina2011 [118]

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The answer would be c
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