Question Walter and his mother drove to Miami Florida. It took them 9 hours and 45 minutes to drive 658.125 miles. Their average speed was how many mph?

Answer: 67.5 mph Step-by-step explanation: The formula for speed is: = Distance / Time Distance = 658.125 miles Time will need to be converted to a decimal. You may convert only the minutes into hours as the hours are already hours. = 45/60 minutes = 0.75 hrs = 9 + 0.75 = 9.75 hours Speed = 658.125 / 9.75 = 67.5 mph Log in to Reply

Answer: 67.5 mphStep-by-step explanation:The formula for speed is:

= Distance / Time

Distance = 658.125 miles

Time will need to be converted to a decimal. You may convert only the minutes into hours as the hours are already hours.

= 45/60 minutes

= 0.75 hrs

= 9 + 0.75

= 9.75 hours

Speed = 658.125 / 9.75

= 67.5 mph