1.
Solve the proportion
A.
1
B.
2
C.
-6
D.
Hint
2.
A 50-mile trip uses 2 gallons of gas. How much gas would you use on a 115-mile trip?
A.
5 gallons
B.
25 gallons
C.
4.6 gallons
D.
4 gallons
Hint
3.
Which pair of triangles is similar?
A.
B.
C.
D.
Hint
4.
and
are similar. Find
b
if
x
= 15,
y
= 6,
and
a
= 7.5.
A.
12
B.
3
C.
7.5
D.
6
Hint
5.
Find cos
X
.
A.
0.75
B.
0.8
C.
6
D.
0.6
Hint
6.
Find tan
Z
.
A.
1.8
B.
6
C.
0.75
D.
0.6
Hint
7.
Seven is what percent of 25?
A.
28%
B.
3.6%
C.
0.28%
D.
2.8%
Hint
8.
What number is 25% of 62?
A.
150
B.
15.5
C.
15
D.
155
Hint
9.
An antique car was purchased for $7400 and is now worth $10,600. What is the approximate percent of change?
A.
43.24%
B.
50%
C.
69.81%
D.
30.19%
Hint
10.
Find the final price of a $78 dress that is on sale for 25% off and has a tax of 5.5%.
A.
$92.14
B.
$56.25
C.
$61.72
D.
$82.29
Hint
11.
What is the probability of selecting a red or yellow marble from a bag that contains 20 red marbles, 15 yellow marbles, and 35 green marbles?
A.
B.
C.
D.
1:1
Hint
12.
What are the odds of not selecting a black ace from a standard deck of 52 cards?
A.
26:1
B.
25:1
C.
1:25
D.
25:26
Hint
13.
A person biking uphill travels 15 miles in 1hour.
The same person biking downhill travels 15 miles
in
hour. Find this person's average speed.
A.
22.5 mph
B.
15 mph
C.
30 mph
D.
20 mph
Hint
14.
Two trains leave the station at the same time. The first train is traveling north at 55 mph and the second train is traveling south at 35 mph. How long does it take until they are 45 miles apart?
A.
hour
B.
hour
C.
hour
D.
1 hour
Hint
15.
If
y
varies inversely as
x
and
y
= 6 when
x
= 24, find
x
when
y
= 12.
A.
24
B.
144
C.
48
D.
12
Hint
16.
If
y
varies inversely as
x
and
y
= 15 when
x
= 3, find
y
when
x
= 9.
A.
3
B.
45
C.
5
D.
15
Hint