Final answer:
Mr. Reed's average speed is 48 km/h; thus, in 3.5 hours, he will travel a total of 168 kilometers.
Step-by-step explanation:
Mr. Reed cycles for 72 kilometers in 1.5 hours. To determine how far he will travel in 3.5 hours at the same rate, we first calculate his average speed. Speed is calculated by dividing the distance by the time. So Mr. Reed's average speed is:
Speed = Distance ÷ Time
= 72 km ÷ 1.5 h
= 48 km/h.
Next, we calculate the distance he would cover in 3.5 hours at this speed:
Distance = Speed × Time
= 48 km/h × 3.5 h
= 168 kilometers.
Therefore, Mr. Reed will travel 168 kilometers in 3.5 hours at this rate.