epdf.pub_cbest-cliffs-test-prep13a9b242c7cb4125e6cca92d00a73d5a41681

Part II: Analysis of Exam Areas
3. If 3x
+ 1= 16, what is the value of x-
4?
A. 19
B. 16
C. 5
D. 1
E. –1
The key here is “find the value of x- 4.” Therefore circle “x - 4.” Note that
solving the original equation gives you only the value of x.
3x
+ 1=
16
3x
= 15
x=
5
Here again notice that 5 is one of the choices, C. But the question asks for the
value of x- 4, not just x. To continue, replace x with 5 and solve:
x- 4=
5- 4=
1
The correct answer choice is D.
4. Together a bat and ball cost $1.25. The bat costs $.25 more than the ball.
What is the cost of the bat?
A. $ .25
B. $ .50
C. $ .75
D. $ 1.00
E. $ 1.25
The key words here are “cost of the bat,” so circle those words. If you solve this
alegebraically:
x = ball
x + $. 25 = bat (costs $.25 more than the ball)
Together they cost $1.25.
42