CPT Review 4/17/01
14
18. A A flower-bed is in the shape of a triangle with one side twice the length of
the shortest side and the third side 15 feet longer than the shortest side. If the
perimeter is 100 feet and if x represents the length of the shortest side, find an
equation to solve for the lengths of the three sides.
2x
x+15
x
x+2x+x+15=100
19. B
If John has $50 more money than Mary and you choose to represent
John’s amount of money as X how should you represent Mary’s amount of
money in terms of X?
If John has $50 more than Mary than Mary must have $50 less than John.
Therefore if John is represented by X, Mary would be represented by X-$50.
20. D Multiply:
(
)
3
5
3
2
2
−
−
x
x
x
(
)
x
x
x
x
x
x
6
10
6
3
5
3
2
2
3
2
−
−
−
−
21. B
Divide:
m
m
m
m
7
7
28
14
8
2
+
−
1
4
2
7
7
7
28
7
14
7
7
28
14
7
8
2
8
2
+
−
=
+
−
=
+
−
m
m
m
m
m
m
m
m
m
m
m
m
22. D
Factor completely:
2
3
4
4
20
12
x
x
x
+
−
.
One
factor is:
(
)
1
5
3
4
4
20
12
2
2
2
3
4
+
−
+
−
x
x
x
x
x
x
Therefore the correct listed factor is
1
5
3
2
+
−
x
x