Nikki and Tatiana rollerblade in opposite directions Tatiana averages 2 MPH faster than Nikki If they began at the same place and ended up 20 Mi apart after 2 hours how fast did each of them travel?

Answer 1

Nikki averages 4 mph

Tatiana averages 6 mpg

Solution:

Nikki's pace=x

Tatiana's pace=x+2

Time=2 hrs

Distance=Velocity * Time, so

Nikki's distance = 2x

Tatiana's distance = 2(x+2) or 2x+4

Distance = 20 mi, so

20 = 2x (Nikki's distance) + 2x + 4 (Tatiana's distance)

20=4x+4 (subtract 4 from each side)

16=4x

x=4