If you can buy 1⁄3 of a pound of salami for 5 dollars, how much can you purchase for 9 dollars? write your answer as a fraction of a pound.

Use this formula:

$5                 =                  $9                           then cross multiply 5x= 0.33 x  9
                                                    You get 5x = 2.97 pounds
  0.33  pounds            X pounds                     Then you solve for X.
                                                                              Divide both sides by 5.
                                                          You get 0.594 pounds.  Written as a                                                                        fraction it becomes 59/100 or simply 6/10.