86,170 - 79,860 = 6310
You want to find the difference between the two
6310
Answer:
A lot of work
Step-by-step explanation:
The area if a rectangle is
A = <em>lw</em><em>
</em>
Where <em>l </em>is the length, and
<em>w</em> is the width.
After 2 hours, she was (62 mph -50 mph)*2h = 24 miles behind her trip average, so she had to make that distance up in the last 3 hours. That is, her average for the last 3 hours was (24 mi)/(3h) = 8 mph more than her trip average.
Jiamin averaged 62+8 = 70 mph for the last 3 hours of her trip.
