Asked by Cecilia
                Ronald made a trip of 450 miles in 8 hours.  Before noon he avg. 60 miles per hour, and after noon he avg. 50 miles per hour.  At what time did he begin his trip and when did it end?
            
            
        Answers
                    Answered by
            Anonymous
            
    D=RT
450=60(8-x)+50x
    
450=60(8-x)+50x
                    Answered by
            Cecilia
            
    Thank you so much for the equation - can u explain why we minus the 8 by x.   I know it's the amount of time, can u clarify... thanks again
    
                    Answered by
            Anonymous
            
    If I told you Ronald traveled 3 hours after noon, how long did he traveled before noon (given he traveled both before and after noon in 8 hours)?  
    
                    Answered by
            Cecilia
            
    5 hours
    
                    Answered by
            Anonymous
            
    That is why it is 8-x. Do you understand? 
    
                    Answered by
            Cecilia
            
    yes i do now - thank you again - i can go to sleep now!! bye thanks
    
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