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Bonnie and Connie ran a total of 135 miles last week. Bonnie runs at a constant speed of 7 miles per hour, and Connie runs at a constant speed of 5 miles per hour. If Bonnie and Connie ran for a total of 24 hours last week, how many minutes did Bonnie run?

 Sep 18, 2019

Best Answer 

 #1
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(135-x)/5 = hours connie runs

x/7 = hours Bonnie runs

 

(135-x)/5 + x/7 = 24

135-x + 5x/7 = 120

945-7x+5x = 840

-2x = -105

x = 52.5 miles = distance of Bonnie

52.5 miles / 7 m/hr = 7.5 hours = 450 minutes

 Sep 18, 2019
 #1
avatar+21827 
0
Best Answer

(135-x)/5 = hours connie runs

x/7 = hours Bonnie runs

 

(135-x)/5 + x/7 = 24

135-x + 5x/7 = 120

945-7x+5x = 840

-2x = -105

x = 52.5 miles = distance of Bonnie

52.5 miles / 7 m/hr = 7.5 hours = 450 minutes

ElectricPavlov Sep 18, 2019

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