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Sophie bikes at a speed of s miles per hour. Her friend Rana is slower, her biking speed is only r miles per hour. Today the girls went for a 20 miles trip, each girl was biking at her usual speed. How long did Sophie wait for Rana after her own arrival to the finish?

Respuesta :

nevermind I messed up

The speed of Sophie and Rana are given as s miles per hour and r miles per hour.

The distance traveled by Sophie and Rand are 20 miles each.

The time taken by Sophie and Rana to travel 20 miles can be calculated by the formula

Speed =[tex] \frac{Distance}{Time} [/tex]

Or Time =[tex] \frac{Distance }{speed} [/tex]

Time taken by Sophie to travel 20 miles =[tex] \frac{20}{s} [/tex]

Time taken by Rana to travel 20 miles =[tex] \frac{20}{r} [/tex]

Time Sophie waits for Rana to arrive at finish point =[tex] \frac{20}{s} -\frac{20}{r} [/tex]



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