How do you solve this?

Question

peter walks along the lake shore for an hour then june jumps in her kayak to find him june kayaks at the speed of 3 miles/hour along the shoreline it takes her 30 minutes to catch up to Peter write an equation and solve it to find what peters average speed is

Answer 1

d_Peter = r(1 + 0.5) He is jogging 1 hour more than June

d_June = 3(0.5)

d_Peter = d_June

r(1 .05) = 3(0.5)

Can you solve for r and answer?