math

The cost of 5 similar digital cameras and 3 similar video cameras is $3213. each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he pay?

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  3. 15
asked by Steve
  1. 5 x + 3 y = 3213
    y = 4 x

    5 x + 12 x = 3213

    17 x = 3213

    x = 189 for digital
    4 x = 756 for video
    sum = 945

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    posted by Damon

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