Answer:
As per the statement:
Sarah drove 40 miles per hour in 3 hours, Sarah drove 120 miles.
Since, speed(s) is proportional to time(t)
Using Inverse proportional.
⇒, where, d is the constant distance
We can write this as:
or
Check:
Sarah drove 40 miles per hour in 3 hours
⇒s = 40 miles per hour and t = 3 hours
then;
⇒Sarah drove 120 miles.
therefore, a valid proportion to represent the problem is,