{"id":1667,"date":"2019-07-31T18:53:26","date_gmt":"2019-07-31T22:53:26","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/?post_type=back-matter&p=1667"},"modified":"2019-08-01T12:11:24","modified_gmt":"2019-08-01T16:11:24","slug":"answer-key-8-8","status":"publish","type":"back-matter","link":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/back-matter\/answer-key-8-8\/","title":{"raw":"Answer Key 8.8","rendered":"Answer Key 8.8"},"content":{"raw":"[latexpage]\r\n
    \r\n \t
  1. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    A<\/th>\r\n\\(20\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(20t\\)<\/td>\r\n<\/tr>\r\n
    B<\/th>\r\n\\(25\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(25t\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(20t+25t=60\\)<\/li>\r\n \t
  2. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    A1<\/sub><\/th>\r\n\\(r\\)<\/td>\r\n\\(6\\)<\/td>\r\n\\(6r\\)<\/td>\r\n<\/tr>\r\n
    A1<\/sub><\/th>\r\n\\(r+s\\)<\/td>\r\n\\(6\\)<\/td>\r\n\\(6(r+s)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(6r+6(r+s)=276\\)<\/li>\r\n \t
  3. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    T1<\/sub><\/th>\r\n\\(25\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(25t\\)<\/td>\r\n<\/tr>\r\n
    T2<\/sub><\/th>\r\n\\(40\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(40t\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(25t+40t=195\\)<\/li>\r\n \t
  4. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    J<\/th>\r\n\\(20\\)<\/td>\r\n\\(5\\)<\/td>\r\n\\(20(5)\\)<\/td>\r\n<\/tr>\r\n
    S<\/th>\r\n\\(r\\)<\/td>\r\n\\(5\\)<\/td>\r\n\\(r(5)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(20(5)+5r=150\\)<\/li>\r\n \t
  5. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    P<\/th>\r\n\\(r+15\\)<\/td>\r\n\\(4\\)<\/td>\r\n\\(4(r+15)\\)<\/td>\r\n<\/tr>\r\n
    F<\/th>\r\n\\(r\\)<\/td>\r\n\\(4\\)<\/td>\r\n\\(4r\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(4(r+15)+4r=300\\)<\/li>\r\n \t
  6. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    A1<\/sub><\/th>\r\n\\(25\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(25t\\)<\/td>\r\n<\/tr>\r\n
    A2<\/sub><\/th>\r\n\\(35\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(35t\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(25t+35t=180\\)<\/li>\r\n \t
  7. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    Away<\/th>\r\n\\(10\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(10(t)\\)<\/td>\r\n<\/tr>\r\n
    Return<\/th>\r\n\\(3\\)<\/td>\r\n\\(10-t\\)<\/td>\r\n\\(3(10-t)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(10t=3(10-t)\\)<\/li>\r\n \t
  8. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    w<\/th>\r\n\\(4\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(4t\\)<\/td>\r\n<\/tr>\r\n
    r<\/th>\r\n\\(20\\)<\/td>\r\n\\((3-t)\\)<\/td>\r\n\\(20(3-t)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(4t=20(3-t)\\)<\/li>\r\n \t
  9. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    Away<\/th>\r\n\\(28\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(28t\\)<\/td>\r\n<\/tr>\r\n
    Back<\/th>\r\n\\(4\\)<\/td>\r\n\\(2-t\\)<\/td>\r\n\\(4(2-t)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrlrr}\r\n28t&=&4(2&-&t) \\\\\r\n28t&=&8&-&4t \\\\\r\n+4t&&&+&4t \\\\\r\n\\midrule\r\n\\dfrac{32t}{32}&=&\\dfrac{8}{32}&& \\\\ \\\\\r\nt&=&\\dfrac{1}{4}&& \\\\ \\\\\r\nd&=&rt&& \\\\\r\nd&=&28(\\dfrac{1}{4})&& \\\\\r\nd&=&7\\text{ km}&&\r\n\r\n\\end{array}\\)<\/li>\r\n \t
  10. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    Leave<\/th>\r\n\\(15\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(15t\\)<\/td>\r\n<\/tr>\r\n
    Return<\/th>\r\n\\(10\\)<\/td>\r\n\\(5-t\\)<\/td>\r\n\\(10(5-t)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrlrr}\r\n15t&=&10(5&-&t) \\\\\r\n15t&=&50&-&10t \\\\\r\n+10t&&&+&10t \\\\\r\n\\midrule\r\n\\dfrac{25t}{25}&=&\\dfrac{50}{25}&& \\\\ \\\\\r\nt&=&2&& \\\\ \\\\\r\nd&=&rt&& \\\\\r\nd&=&15(2)&& \\\\\r\nd&=&30\\text{ km}&&\r\n\\end{array}\\)<\/li>\r\n \t
  11. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    To resort<\/th>\r\n\\(30\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(30t\\)<\/td>\r\n<\/tr>\r\n
    Return<\/th>\r\n\\(50\\)<\/td>\r\n\\(8-t\\)<\/td>\r\n\\(50(8-t)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrlrr}\r\n30t&=&50(8&-&t) \\\\\r\n30t&=&400&-&50t \\\\\r\n+50t&&&+&50t \\\\\r\n\\midrule\r\n\\dfrac{80t}{80}&=&\\dfrac{400}{80}&& \\\\ \\\\\r\nt&=&5&& \\\\ \\\\\r\nd&=&rt&& \\\\\r\nd&=&30(5)&& \\\\\r\nd&=&150\\text{ km}&&\r\n\\end{array}\\)<\/li>\r\n \t
  12. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    To airport<\/th>\r\n\\(90\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(90t\\)<\/td>\r\n<\/tr>\r\n
    Return<\/th>\r\n\\(120\\)<\/td>\r\n\\(7-t\\)<\/td>\r\n\\(120(7-t)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrlrr}\r\n90t&=&120(7&-&t) \\\\\r\n90t&=&840&-&120t \\\\\r\n+120t&&&+&120t \\\\\r\n\\midrule\r\n\\dfrac{210t}{210}&=&\\dfrac{840}{210}&& \\\\ \\\\\r\nt&=&4&& \\\\ \\\\\r\nd&=&rt&& \\\\\r\nd&=&90(4)&& \\\\\r\nd&=&360\\text{ km}&&\r\n\\end{array}\\)<\/li>\r\n \t
  13. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    Sam<\/th>\r\n\\(4\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(4t\\)<\/td>\r\n<\/tr>\r\n
    Sue<\/th>\r\n\\(6\\)<\/td>\r\n\\(t-2\\)<\/td>\r\n\\(6(t-2)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrrrr}\r\n4t&=&6(t&-&2) \\\\\r\n4t&=&6t&-&12 \\\\\r\n-6t&&-6t&& \\\\\r\n\\midrule\r\n\\dfrac{-2t}{-2}&=&\\dfrac{-12}{-2}&& \\\\ \\\\\r\nt&=&6&& \\\\\r\nt-2&=&4&&\r\n\\end{array}\\)<\/li>\r\n \t
  14. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    M1<\/sub><\/th>\r\n\\(5\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(5t\\)<\/td>\r\n<\/tr>\r\n
    M2<\/sub><\/th>\r\n\\(8\\)<\/td>\r\n\\(t-6\\)<\/td>\r\n\\(8(t-6)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrrrr}\r\n5t&=&8(t&-&6) \\\\\r\n5t&=&8t&-&48 \\\\\r\n-8t&&-8t&& \\\\\r\n\\midrule\r\n\\dfrac{-3t}{-3}&=&\\dfrac{-48}{-3}&& \\\\ \\\\\r\nt&=&16&& \\\\\r\nt-6&=&10&&\r\n\\end{array}\\)<\/li>\r\n \t
  15. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    MB<\/th>\r\n\\(8\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(8t\\)<\/td>\r\n<\/tr>\r\n
    CC<\/th>\r\n\\(16\\)<\/td>\r\n\\(t-2\\)<\/td>\r\n\\(16(t-2)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrrrr}\r\n8t&=&16(t&-&2) \\\\\r\n8t&=&16t&-&32 \\\\\r\n-16t&&-16t&& \\\\\r\n\\midrule\r\n\\dfrac{-8t}{-8}&=&\\dfrac{-32}{-8}&& \\\\ \\\\\r\nt&=&4&& \\\\\r\nt-2&=&2&&\r\n\\end{array}\\)<\/li>\r\n \t
  16. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    R1<\/sub><\/th>\r\n\\(6\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(6t\\)<\/td>\r\n<\/tr>\r\n
    R2<\/sub><\/th>\r\n\\(8\\)<\/td>\r\n\\(t-1\\)<\/td>\r\n\\(8(t-1)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrrrr}\r\n6t&=&8(t&-&1) \\\\\r\n6t&=&8t&-&8 \\\\\r\n-8t&&-8t&& \\\\\r\n\\midrule\r\n\\dfrac{-2t}{-2}&=&\\dfrac{-8}{-2}&& \\\\ \\\\\r\nt&=&4&& \\\\\r\nt-1&=&3&&\r\n\\end{array}\\)<\/li>\r\n \t
  17. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    M1<\/sub><\/th>\r\n\\(20\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(20t\\)<\/td>\r\n<\/tr>\r\n
    M2<\/sub><\/th>\r\n\\(30\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(30t\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrrrl}\r\n20t&+&30t&=&300 \\\\ \\\\\r\n&&\\dfrac{50t}{50}&=&\\dfrac{300}{50} \\\\ \\\\\r\n&&t&=&6\r\n\\end{array}\\)<\/li>\r\n \t
  18. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    T1<\/sub><\/th>\r\n\\(r\\)<\/td>\r\n\\(4\\)<\/td>\r\n\\(4r\\)<\/td>\r\n<\/tr>\r\n
    T2<\/sub><\/th>\r\n\\(r+6\\)<\/td>\r\n\\(4\\)<\/td>\r\n\\(4(r+6)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrrrrrr}\r\n4r&+&4(r&+&6)&=&168 \\\\\r\n4r&+&4r&+&24&=&168 \\\\\r\n&&&-&24&&-24 \\\\\r\n\\midrule\r\n&&&&\\dfrac{8r}{8}&=&\\dfrac{144}{8} \\\\ \\\\\r\n&&&&r&=&18 \\\\\r\n&&&&r+6&=&24\r\n\\end{array}\\)<\/li>\r\n \t
  19. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    C1<\/sub><\/th>\r\n\\(r\\)<\/td>\r\n\\(3\\)<\/td>\r\n\\(3r\\)<\/td>\r\n<\/tr>\r\n
    C2<\/sub><\/th>\r\n\\(2r\\)<\/td>\r\n\\(3\\)<\/td>\r\n\\(3(2r)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrrrl}\r\n3r&+&3(2r)&=&72 \\\\\r\n3r&+&6r&=&72 \\\\ \\\\\r\n&&\\dfrac{9r}{9}&=&\\dfrac{72}{9} \\\\ \\\\\r\n&&r&=&8 \\\\ \\\\\r\n&&C_1&=&\\phantom{0}8\\text{ km\/h} \\\\\r\n&&C_2&=&16\\text{ km\/h}\r\n\\end{array}\\)<\/li>\r\n \t
  20. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    P1<\/sub><\/th>\r\n\\(r-25\\)<\/td>\r\n\\(2\\)<\/td>\r\n\\(2(r-25)\\)<\/td>\r\n<\/tr>\r\n
    P2<\/sub><\/th>\r\n\\(r\\)<\/td>\r\n\\(2\\)<\/td>\r\n\\(2r\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrrrrrl}\r\n2(r&-&25)&+&2r&=&430 \\\\\r\n2r&-&50&+&2r&=&430 \\\\\r\n&+&50&&&&+50 \\\\\r\n\\midrule\r\n&&&&\\dfrac{4r}{4}&=&\\dfrac{480}{4} \\\\ \\\\\r\n&&&&r&=&120 \\\\ \\\\\r\n&&&&P_1&=&120-25=95 \\\\\r\n&&&&P_2&=&120\r\n\\end{array}\\)<\/li>\r\n \t
  21. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    S1<\/sub><\/th>\r\n\\(55\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(55t\\)<\/td>\r\n<\/tr>\r\n
    S2<\/sub><\/th>\r\n\\(40\\)<\/td>\r\n\\(2.5-t\\)<\/td>\r\n\\(40(2.5-t)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrrrrrr}\r\n55t&+&40(2.5&-&t)&=&130 \\\\\r\n55t&+&100&-&40t&=&130 \\\\\r\n&-&100&&&&-100 \\\\\r\n\\midrule\r\n&&&&\\dfrac{15t}{15}&=&\\dfrac{30}{15} \\\\ \\\\\r\n&&&&t&=&2\r\n\\end{array}\\)<\/li>\r\n \t
  22. \r\n\r\n\r\n\r\n\r\n\r\n
    Who or What<\/th>\r\nRate<\/th>\r\nTime<\/th>\r\nEquation<\/th>\r\n<\/tr>\r\n
    To end<\/th>\r\n\\(8\\)<\/td>\r\n\\(t\\)<\/td>\r\n\\(8t\\)<\/td>\r\n<\/tr>\r\n
    Return<\/th>\r\n\\(3\\)<\/td>\r\n\\(55-t\\)<\/td>\r\n\\(3(55-t)\\)<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n\\(\\begin{array}{rrlrr}\r\n8t&=&3(55&-&t) \\\\\r\n8t&=&165&-&3t \\\\\r\n+3t&&&+&3t \\\\\r\n\\midrule\r\n\\dfrac{11t}{11}&=&\\dfrac{165}{11}&& \\\\ \\\\\r\nt&=&15&& \\\\ \\\\\r\nd&=&r\\cdot t&& \\\\\r\nd&=&8(15)&& \\\\\r\nd&=&120\\text{ m}&&\r\n\\end{array}\\)<\/li>\r\n<\/ol>","rendered":"
      \n
    1. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      A<\/th>\n\"20\"<\/td>\n\"t\"<\/td>\n\"20t\"<\/td>\n<\/tr>\n
      B<\/th>\n\"25\"<\/td>\n\"t\"<\/td>\n\"25t\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"20t+25t=60\"<\/li>\n

    2. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      A1<\/sub><\/th>\n\"r\"<\/td>\n\"6\"<\/td>\n\"6r\"<\/td>\n<\/tr>\n
      A1<\/sub><\/th>\n\"r+s\"<\/td>\n\"6\"<\/td>\n\"6(r+s)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"6r+6(r+s)=276\"<\/li>\n

    3. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      T1<\/sub><\/th>\n\"25\"<\/td>\n\"t\"<\/td>\n\"25t\"<\/td>\n<\/tr>\n
      T2<\/sub><\/th>\n\"40\"<\/td>\n\"t\"<\/td>\n\"40t\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"25t+40t=195\"<\/li>\n

    4. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      J<\/th>\n\"20\"<\/td>\n\"5\"<\/td>\n\"20(5)\"<\/td>\n<\/tr>\n
      S<\/th>\n\"r\"<\/td>\n\"5\"<\/td>\n\"r(5)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"20(5)+5r=150\"<\/li>\n

    5. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      P<\/th>\n\"r+15\"<\/td>\n\"4\"<\/td>\n\"4(r+15)\"<\/td>\n<\/tr>\n
      F<\/th>\n\"r\"<\/td>\n\"4\"<\/td>\n\"4r\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"4(r+15)+4r=300\"<\/li>\n

    6. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      A1<\/sub><\/th>\n\"25\"<\/td>\n\"t\"<\/td>\n\"25t\"<\/td>\n<\/tr>\n
      A2<\/sub><\/th>\n\"35\"<\/td>\n\"t\"<\/td>\n\"35t\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"25t+35t=180\"<\/li>\n

    7. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      Away<\/th>\n\"10\"<\/td>\n\"t\"<\/td>\n\"10(t)\"<\/td>\n<\/tr>\n
      Return<\/th>\n\"3\"<\/td>\n\"10-t\"<\/td>\n\"3(10-t)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"10t=3(10-t)\"<\/li>\n

    8. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      w<\/th>\n\"4\"<\/td>\n\"t\"<\/td>\n\"4t\"<\/td>\n<\/tr>\n
      r<\/th>\n\"20\"<\/td>\n\"(3-t)\"<\/td>\n\"20(3-t)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"4t=20(3-t)\"<\/li>\n

    9. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      Away<\/th>\n\"28\"<\/td>\n\"t\"<\/td>\n\"28t\"<\/td>\n<\/tr>\n
      Back<\/th>\n\"4\"<\/td>\n\"2-t\"<\/td>\n\"4(2-t)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrlrr}<\/li>\n

    10. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      Leave<\/th>\n\"15\"<\/td>\n\"t\"<\/td>\n\"15t\"<\/td>\n<\/tr>\n
      Return<\/th>\n\"10\"<\/td>\n\"5-t\"<\/td>\n\"10(5-t)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrlrr}<\/li>\n

    11. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      To resort<\/th>\n\"30\"<\/td>\n\"t\"<\/td>\n\"30t\"<\/td>\n<\/tr>\n
      Return<\/th>\n\"50\"<\/td>\n\"8-t\"<\/td>\n\"50(8-t)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrlrr}<\/li>\n

    12. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      To airport<\/th>\n\"90\"<\/td>\n\"t\"<\/td>\n\"90t\"<\/td>\n<\/tr>\n
      Return<\/th>\n\"120\"<\/td>\n\"7-t\"<\/td>\n\"120(7-t)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrlrr}<\/li>\n

    13. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      Sam<\/th>\n\"4\"<\/td>\n\"t\"<\/td>\n\"4t\"<\/td>\n<\/tr>\n
      Sue<\/th>\n\"6\"<\/td>\n\"t-2\"<\/td>\n\"6(t-2)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrrrr}<\/li>\n

    14. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      M1<\/sub><\/th>\n\"5\"<\/td>\n\"t\"<\/td>\n\"5t\"<\/td>\n<\/tr>\n
      M2<\/sub><\/th>\n\"8\"<\/td>\n\"t-6\"<\/td>\n\"8(t-6)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrrrr}<\/li>\n

    15. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      MB<\/th>\n\"8\"<\/td>\n\"t\"<\/td>\n\"8t\"<\/td>\n<\/tr>\n
      CC<\/th>\n\"16\"<\/td>\n\"t-2\"<\/td>\n\"16(t-2)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrrrr}<\/li>\n

    16. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      R1<\/sub><\/th>\n\"6\"<\/td>\n\"t\"<\/td>\n\"6t\"<\/td>\n<\/tr>\n
      R2<\/sub><\/th>\n\"8\"<\/td>\n\"t-1\"<\/td>\n\"8(t-1)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrrrr}<\/li>\n

    17. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      M1<\/sub><\/th>\n\"20\"<\/td>\n\"t\"<\/td>\n\"20t\"<\/td>\n<\/tr>\n
      M2<\/sub><\/th>\n\"30\"<\/td>\n\"t\"<\/td>\n\"30t\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrrrl}<\/li>\n

    18. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      T1<\/sub><\/th>\n\"r\"<\/td>\n\"4\"<\/td>\n\"4r\"<\/td>\n<\/tr>\n
      T2<\/sub><\/th>\n\"r+6\"<\/td>\n\"4\"<\/td>\n\"4(r+6)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrrrrrr}<\/li>\n

    19. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      C1<\/sub><\/th>\n\"r\"<\/td>\n\"3\"<\/td>\n\"3r\"<\/td>\n<\/tr>\n
      C2<\/sub><\/th>\n\"2r\"<\/td>\n\"3\"<\/td>\n\"3(2r)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrrrl}<\/li>\n

    20. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      P1<\/sub><\/th>\n\"r-25\"<\/td>\n\"2\"<\/td>\n\"2(r-25)\"<\/td>\n<\/tr>\n
      P2<\/sub><\/th>\n\"r\"<\/td>\n\"2\"<\/td>\n\"2r\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrrrrrl}<\/li>\n

    21. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      S1<\/sub><\/th>\n\"55\"<\/td>\n\"t\"<\/td>\n\"55t\"<\/td>\n<\/tr>\n
      S2<\/sub><\/th>\n\"40\"<\/td>\n\"2.5-t\"<\/td>\n\"40(2.5-t)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrrrrrr}<\/li>\n

    22. \n\n\n\n\n\n
      Who or What<\/th>\nRate<\/th>\nTime<\/th>\nEquation<\/th>\n<\/tr>\n
      To end<\/th>\n\"8\"<\/td>\n\"t\"<\/td>\n\"8t\"<\/td>\n<\/tr>\n
      Return<\/th>\n\"3\"<\/td>\n\"55-t\"<\/td>\n\"3(55-t)\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \"\begin{array}{rrlrr}<\/li>\n<\/ol>\n","protected":false},"author":727,"menu_order":76,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"back-matter-type":[],"contributor":[],"license":[],"class_list":["post-1667","back-matter","type-back-matter","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter\/1667","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter"}],"about":[{"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/wp\/v2\/types\/back-matter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/wp\/v2\/users\/727"}],"version-history":[{"count":5,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter\/1667\/revisions"}],"predecessor-version":[{"id":2932,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter\/1667\/revisions\/2932"}],"metadata":[{"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter\/1667\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/wp\/v2\/media?parent=1667"}],"wp:term":[{"taxonomy":"back-matter-type","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/pressbooks\/v2\/back-matter-type?post=1667"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/wp\/v2\/contributor?post=1667"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/intermediatealgebrakpu\/wp-json\/wp\/v2\/license?post=1667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}