epdf.pub_cbest-cliffs-test-prep13a9b242c7cb4125e6cca92d00a73d5a41681

Part V: Practice-Review-Analyze-Practice
43. B. If team B’s victories are called x, then team A must have 2x victories, team C must
have (2x – 5) victories, and team D must have (x + 4) victories. All together these total
6x – 1. The problem states that the total equals 29 victories. Thus,
6x – 1 = 29
6x = 30
x = 5
Therefore, team D has (x + 4) victories, or (5 + 4) = 9.
44. C. If you call the smaller piece x, then the larger piece (6 inches bigger) must be x+ 6.
Since the two pieces together equal a yardstick,
x + (x + 6) = 36
x + x + 6 = 36
45. B. Solving for p, first subtract 9 from both sides.
7p + 9 = 24
7p + 9 – 9 = 24 – 9
7p = 15
Now divide both sides by 7:
7p
7
=
15
7
p = 15 ⁄7
5(
burritos) 45(
burritos)
46. E. =
12 ( time)
x ( time)
(you don’t know this, so represent it as x.)
Shortcut — These are equivalent fractions.
Since 5# 9=
45
then 12 # 9 = 108 (which is x)
Now divide by 60:
108 minutes
60 (minutesin one hour)
= 1hour
48minutes
You can also solve this mathematically as follows by first cross multiplying:
12 5 =
45
x
(5x) = (12) (45)
5x = 540
374