<prompt> Determine the speed of a car that traveled 45 miles in 45 minutes  <response>: To determine the speed of the car, we need to convert the distance and time to consistent units and then use the formula: speed distancetime.First, lets convert 45 minutes to hours: 45 minutes is equivalent to 0.75 hours Since 1 hour 60 minutes.Now that we have consistent units miles and hours, we can use the speed formula:Speed Distance TimeSpeed 45 miles 0.75 hoursSpeed 60 mileshourTherefore, the speed of the car that traveled 45 miles in 45 minutes is 60 miles per hour. 