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It’s math, and pls explain.

 

It took Tess 6 hours to drive from home to the beach at a speed of 80 km/h.  If she has 5 hours to make the return trip home, what should her speed be?

 

b. What should her speed be if she takes 5 hours to get home?  (Show your work.)

 

 Apr 20, 2020
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6 hr  x  80 km/hr = 480 km

 

480 km/ 5hr = 96 km/hr

 

 

 

 

Using the hint:     6 hr * 80 km/hr  =  5 hr * x  km/hr

 Apr 20, 2020
edited by ElectricPavlov  Apr 20, 2020

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