close
    1. Home
      2. ›
    2. Uncategorized
      3. ›
    3. Word Problem for Algebra- Race Time. The equation R=0.028t+20.8 can be used to predict the world record in the 200mdash, where R is the record in seconds and t is the number of years since 1920. In what year will the record be 18.0 seconds?
    Word Problem for Algebra- Race Time. The equation R=0.028t+20.8 can be used to predict the world record in the 200mdash, where R is the record in seconds and t is the number of years since 1920. In what year will the record be 18.0 seconds?

    Answer this
    0  Views: 1309 Answers: 1 Posted: 13 years ago
    Tags: word problem pre-algebra
    Comment this question

      1 Answer

      The year in which the record will be 18 seconds is:


      18 = 0.028*t+20.8


      -2.8 = 0.028*t


      t = -100


      does it mean that the year is 1820??

      13 years ago. Rating: 0
      Comment this answer



        Did this answer your question? If not, then ask a new question.

        Top contributors in Uncategorized category

         
        ROMOS
        Answers: 18061 / Questions: 154
        Karma: 1102K
         
        Colleen
        Answers: 47269 / Questions: 115
        Karma: 953K
         
        country bumpkin
        Answers: 11322 / Questions: 160
        Karma: 838K
         
        Benthere
        Answers: 2392 / Questions: 30
        Karma: 760K
        > Top contributors chart

        Unanswered Questions

        NOVA88
        Answers: 0 Views: 6 Rating: 0
        82betcomco
        Answers: 0 Views: 7 Rating: 0
        ww886im
        Answers: 0 Views: 6 Rating: 0
        8XBETworld
        Answers: 0 Views: 7 Rating: 0
        789clubs
        Answers: 0 Views: 6 Rating: 0
        Nhà Cái 69vn
        Answers: 0 Views: 5 Rating: 0
        Nhà Cái 7m
        Answers: 0 Views: 6 Rating: 0
        sogoushurufa-pc
        Answers: 0 Views: 7 Rating: 0
        > More questions...
        489658
        questions
        725333
        answers
        822339
        users