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mart [117]
2 years ago
7

Benny brought five new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there a

re now only thirty cards left. how many cards did benny start with?
Pls show work and the check too.
Mathematics
2 answers:
VMariaS [17]2 years ago
7 0
Benny started with 55 five cards. In order for his dog to have eaten half his cards and end up with 30 cards, that would mean he had 60 cards. Mind you, he had bought 5 more the day before his dog ate them. I hope that makes sense
rusak2 [61]2 years ago
7 0
He started off with 55 cards
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Answer:

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Step: Solve a+s=560 for a:

a+s=560

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a=−s+560

Step: Substitute −s+560 for a in 8a+3s=2905:

8a+3s=2905

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−5s+4480=2905(Simplify both sides of the equation)

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−5s=−1575

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s=315

Step: Substitute 315 for s in a=−s+560:

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pantera1 [17]

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<u>Step-by-step explanation:</u>

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