Sample Final Exam from 081

MAT081 Sample Final Exam
The following questions appeared on a MAT081 Final Exam here at SCCC in the recent past.
If you do not think you could answer 75% or more of these correctly, you might want to enroll
in MAT081 before attempting MAT084.
(1)
Simplify:
(2)
Subtract:
1)____
2)____
(3)
Solve for x :
3)____
(4)
Add:
4)____
(5)
Divide:
5)____
(6)
6)____
(7)
Simplify:
7)____
(8)
8)____
(9)
9)____
(10)
10)____
(11)
11)____
(12) Add:
12)____
(13) Solve for n:
13)____
(14) Simplify:
14)____
(15) Add:
15)____
(16) Simplify:
16)____
(17)
17)____
(18)
18)____
(19) Solve for x :
19)____
(20) Simplify:
20)____
(21) Simplify: 3(3x − 2 y ) + 2 x − 4 y
Ans 21:____________________
(22) Find the unknown number, n:
 2   1
 9   2
  = 
n
3
4
 
Ans 22:____________________
(23) Simplify: 3 + 2(8 − 4) − ( −8)
Ans 23:____________________
(24)
5
3
Subtract: 28 −19
6
8
Ans 24:____________________
(25) Find the area of the figure, which is not to scale.
Include proper units for credit.
Ans 25:____________________
28in
18in
40in
(26) A circular table has a radius of 5 feet. What is it’s
area? Use 3.14 as an approximation of π. Include
proper units.
Ans 26:____________________
(27) Evaluate 4u − 5v 2 when u = 7 and v = −3.
Ans 27:____________________
(28) Solve for x : x + 6 = 4(2 x − 1)
Ans 28:____________________
(29) The circulation of a newsletter decreased from 3700 to
3145. What was the percent decrease in circulation?
Ans 29:____________________
(30) The total cost of a garden tractor priced at $1714.99 is
$1831.03. What is the sales tax rate? Round to the
nearest tenth of a percent.
Ans 30:____________________
(31) A lot is 45 meters by 38 meters. A swimming pool 8
meters by 6 meters is placed on the lot. How much
area is left over on the lot after the pool is installed?
Include proper units.
Ans 31:____________________
(32) A rectangular play yard is 29ft by 26 ft. Grass is going
to be installed in the yard at a cost of $2.75 per square
foot. How much will it cost to install grass on this play
yard?
Ans 32:____________________
(33) Suppose a television set’s regular price is $645. If it’s
on sale for 20% off, how much will you pay for it if
the tax rate is 8%? Round to the nearest penny.
Ans 33:____________________
(34) Simplify completely:
7 − 3(2 − 5) 2 − 32
Ans 34:____________________
(35) In a recent survey of computer manufacturers, 54
preferred E−Machines, 162 preferred HP, and 234
preferred Gateway. What percent preferred Gateway?
Ans 35:____________________
(36) Suppose you have purchased 315 yards of material for
$3 per yard to make banners. Each banner you make
1
takes 2 yards of material. If you can sell each banner
4
for $20 each, how much profit would you make on all
the banners you can make?
Ans 36:____________________
(37) Property valued at $125,000 is assessed for tax
2
purposes at
of its assessed value. If the property tax
5
rate is $1.50 per every $100 of assessed value, what is
the tax for this property?
Ans 37:____________________
(38) A rectangular garden is 8 feet wide and 12 feet long. It
is surrounded by a stone walkway that is 2 feet wide
all the way around the edge. What is the total length of
fence needed to surround the outer walkway?
Ans 38:____________________
(39)
Evaluate
3x − 2 y2
when x = −3 and y = 4.
x+ y
(40) Solve for x : 2 x − 3 = 21
Ans 39:____________________
Ans 40:____________________