On call 3.5 hour $10 talk time 1/2 hour $1.25 what is the unit rate in dollar per hour for each company

48. On call = 3.5 hours for 10 dollars = > ½ hour for 1.25 dollars. Now, let’s solve the unit rate for each company first = 3.5 hour / 10 dollars = > 10 / 3.5 = > Unit rate is 2.9 dollars/hr Second company = ½ hour for 1.25 dollars = > 1.25 /.5 = > 0.25 dollars / hr. Thus, the first company pays better than the second one because it pays 2.9 dollars every hour of talk compare to the 2nd one which pays only 0.25 dollars per hr.