Kristin left the movie theater and drove toward the mountains. Adam left one hour later driving at 30 mph in an effort to catch up to Kristin.

Question

After driving for five hours Adam finally caught up. Find Kristin's average speed.

Answer 1

d_Kristin = (r)(5)

d_Adam = (30)(4)

_{5r = (30)(4)}

_{Can you solve for r and answer?}