Math word problem plz help me out

Question

Julia traveled 360 kilometers to get to underground caves. On her way home, she traveled twice as fast. What was Julia's average speed on the way to the caves and on the way back home if the total time was 10 hours?

Answer 1

Hello Waker.

lets say speed of Julia is v;

when she go to caves her speed is v;

when she go back her home, her speed is 2v; the equation should be;

360/v +360/2v = 10 (cancel v)

360 + 360/2 = 10v

360 +180 = 10v

540 = 10v

54 = v

hope that helps