Verified Answer :

  1. Make equation and plug in

    13. Proportion

    14. Finding a constant rate, and then manipulate




    12. Where x is miles driven, and y is answer, and z is days
          19.95z+0.15x=y
          Plug in two values
          19.95 x 2 + 0.15 x 250 = y
          39.93+37.5 = y
          y=77.43

    13. 5:2 as 175:x 
          5/2 = 175/x
          x = 70
          70+175=245

    14. 260:5 = x:1
          260/5=x/1
          x = 52
          
          52:1 = y:9
          52/1 = y/9
          y = 468

    I hope you understand the process.


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