need help with word problems

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The tour bus has traveled the Xirst half of your trip at only 30 mph. How fast would your tour bus have to travel for the rest of your trip to have an average speed of 50 mph?

 

Jun 18th, 2015

(30 +x)/2 =50

30+x =100

x =70 mph


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Jun 18th, 2015

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