The difference between walking and running is the number of feet in contact with the ground. When walking, at least one foot must be in contact with the ground at all times. When running, at some point in the in the stride both feet are in the air. If a person is walking at 7 miles/hour, then how many "walking paces"/second is this. (An average walking pace has a length of 31 inches.) Work out the problem and then check your answer below.

You may need the dimensional analysis fact sheet, click here.

Your graphing calculator will look like this

(All the numbers in the numerator in the parentheses)/(all the numbers in the denominator in parentheses) ...see below