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Math Help - fractions

  1. #1
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    fractions

    Working alone, Jess can rake the leaves off a lawn in 50 minutes. Working alone Tate can do the same job in 30 minutes. Today they are going to work together, Jess starting at one end of the lawn and Tate starting simultaneously at the other end. In how many minutes will they meet and have the lawn completely raked?

    I did Xmin times 1/50 + 1/30 = 1

    and then I got x = 150/8

    x= 18.75

    My answer is 19min and 15sec

    Is my answer correct?

    Vicky.

    Thanks in advance for your help.
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  2. #2
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    your answer that you got is 18.75 minutes, it doesn't translate to 19 min 15 seconds, it is 18 minutes +.75*60=18min +45 seconds
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  3. #3
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    Thanks!!!
    I knew I was doing something wrong. My brain went dead.

    VICKY.
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