Question

Your friend's pedometer shows that he took 17000 steps in 2.50 h during a hike. how would the answer change if the time were given as 2.5 h instead of 2.50 h? express your answer in steps per hour.

Answer 1

For this case we have the following variables:

x: number of steps

t: total time

We then have the following relationship:

$r=\frac{x}{t}$

For t = 2.50 we have:

$r=\frac{17000}{2.50}$

$r = 6800$

For t = 2.5 we have:

$r=\frac{17000}{2.5}$

$r = 6800$

Note: We observe that the result is the same because the zero after the last decimal place is not significant.

Answer:

if the time was given as 2.5 h instead of 2.50 h, the answer is the same:

$r = 6800$