MTH 60 โ Practice test 2
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Remember that I will be grading the process you use to find your solution and the way in which you
present your steps; to earn full credit you need to follow the process and write your steps in a manner
consistent with that illustrated in class. To earn full credit you need to also get the correct solution.
1. Find the solution to the equation 7 5 10 10zz
+
=โ
.
2. Find the solution set to the equation
(
)
54710tt t
โ
โโ=+.
3. Find the solution set to the equation
(
)
(
)
42 1 7 3 2www
+
+= โ โ .
4. Find the solution to the equation 51
1
24
xx
โ
=+.
5. Find the solution set to the equation
(
)
(
)
0.03 2 7 0.09 0.06 5tt
โ
+= โ +.
6. Janice needs to build a pen so that her pet ferret can play outside. Janice has 39.2 ft of
fencing and wants to build the pen so that the length of the long side is 4/3 the length of the
short side. How long should Janice make each side of the pen?
7. Solve each formula for the indicated letter.
a. Solve
kPVT= for P b. Solve
(
)
1AP r
=
+ for P
c. Solve
()
1
A
Pr=+ for r d. Solve 2
22Ar rh
ฯฯ
=+ for h
8. Write the set indicated on the number line below in both interval notation and set builder
notation.
9. Write the set indicated on the number line below in both interval notation and set builder
notation.
10. Solve the inequality
(
)
10 78 36
x
xโโคโ โ . State your solution set using interval notation.
11. Solve the inequality 56 7 28xโโคโ < . State your solution set using interval notation.
12. The sale price โ after a 60% price reduction - on a garden hoe is $14. What was the original
price of the garden hoe?
t
[
)
x
]
