,
;
·1
4. Troy drove home from college for vacation. The college is 210 miles away, and Troy drove at
an average speed of 60 mph without making any stops.
.
.
= rt. Show
.
a.
How long did the trip take? Use the distance formula d
b.
On the way back to school, Troy drove at an average speed of 55 mph and stopped
at a friend's for lunch for
±
your work.
hour in the middle of the trip. The stop added 10 miles to
the distance. How long did it take him to make the return trip? Show your work.
5. Amit drives a pickup truck. On Monday, his gas tank was
Thursday his gas tank was
%
±
full, and he filled it up. On
full, and he again filled it up. Amit put a total of 19;
gallons
of gas into his truck. What is the capacity of the truck's fuel tank? Show your work.
6. .Arnlt and Troy each have satellite radio plans. Amit's plan costs $8.95 to start plus $3.00
each month. Troy's plan costs $18.95 to start plus $2.00 each month.
a. Whose plan costs less for three months? Show your work.
b. Whose plan costs less for one year? Show your work.
c. For what number of months do the plans cost the same? What is the cost? Show your
work.