Question

Phil is riding his bike. he rides 50 miles in 4 hours, 62.5 miles in 5 hours, and 75 miles in 6 hours. find the constant of proportionality and write an equation to describe the situation. let x represent the number of hours.

Answer 1

12.5(x)
x = hours
12.5 = per hour

Answer 2

50:4=12.5 per hour.
How we can be sure for 5 hours.
5×12.5=62.5 the anwser is correct.