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26 October, 15:13

If one redskin and 4 golden roughs cost $1.65, whereas 2 redskins and 3 golden roughs cost $1.55, how much does each type or sweet cost?

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  1. 26 October, 15:36
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    Redskins cost $0.25 and golden roughs cost $0.35.

    Step-by-step explanation:

    Let r be the cost of a redskin and g the cost of golden roughs. So we have the system of equations:

    r + 4g = 1.65

    2r + 3g = 1.55

    Multiply the first equation by - 2:

    -2r - 8g = - 3.30

    Adding this to the second equation:

    -5g = - 1.75

    g = 0.35.

    Now substitute this into the first equation:

    r + 4*0.35 = 1.65

    r = 1.65 - 1.40

    r = 0.25.
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