At 1 p. m., the work crew starts at the intersection of New Street and Main Street and moves toward the intersection of Main Street and Wilson Street, painting lane lines at an average speed of 5mi/h. The work crew will take its afternoon break when it is 3 mi from the intersection of Main Street and Wilson Street. Determine what time the work crew will take its afternoon break.

Hints: you will need to use these equations: D=RT, y=mx+b and m=y1-y2/x1-x2

One more hint, draw the above image on graph paper, and make the intersection of North St. and Wilson St. the origin. Then you can make a bunch of linear equations to represent the roads. Find points of intersection of the lines. And use the points of intersection, with D=RT find out when the crew took their afternoon break.