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9 June, 21:44

He has a total of 85 cards and is selling each basketball card for $5 and each baseball card for $3. He hopes to make a total of $315. How many baseball cards and basketball cards does he have in his collection

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  1. 10 June, 00:37
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    30 basketball cards

    55 baseball cards

    Step-by-step explanation:

    set up a system of equations

    b + c = 85

    5b + 3c = 315

    use substitution

    c = 85 - b

    5b + 3 (85-b) = 315

    5b + 255 - 3b = 315

    2b = 60

    b = 30

    c = 85 - 30 = 55
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