math

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The length of a rectangle is 3 in. more than twice its width. If the perimeter of the rectangle is 18 in., find the width of the rectangle.

  • math -

    2w=l-3

    2w + 2l=18

    solve.

  • math -

    Thank you.
    Can you help me with this one:
    Stan invested $13,000, part at 17% and part at 2%. If the total interest at the end of the year is $1,910, how much did he invest at 17%?

  • math -

    Let Y = amount invested at 17%.
    Then 13,000 - Y = amount invested at 2%.

    Y + (13,000 - Y)*0.02 = 1910.
    Solve for Y.

    Your questions are likely to be ignored if you post follow questions to an earlier one. It is better to post a different question under Post a New Question rathan than to piggy back on one to which a response has been given.

  • math -

    Correct, I do not understand how to solve for Y

  • math -

    Ok thank you
    Now I am completely lost

  • math -

    You don't understand something about the answer? What? Please be specific.

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