Sharon drove 188.3 miles to see a softball game. If she was driving for 3 1/2 hours,what was her average rate of speed?
speed = distance/time
just plug and chug.
To find Sharon's average rate of speed, we need to divide the total distance she drove by the time it took her to drive that distance.
Let's start by converting the mixed number of hours (3 1/2 hours) into a proper fraction.
3 1/2 hours = 7/2 hours
To calculate the average rate of speed, we divide the total distance (188.3 miles) by the time (7/2 hours):
Average rate of speed = Total distance / Time
Average rate of speed = 188.3 miles / (7/2 hours)
To divide a fraction by a fraction, we multiply the first fraction by the reciprocal of the second fraction:
Average rate of speed = 188.3 miles * (2/7 hours)
Now, we can cancel out the units of hours:
Average rate of speed = (188.3 miles * 2) / 7
Average rate of speed ≈ 376.6 / 7
Now, divide 376.6 by 7:
Average rate of speed ≈ 53.8 miles per hour
Therefore, Sharon's average rate of speed was approximately 53.8 miles per hour.