Mathematics 105
Study Guide for Test 1
Section 1.8 of your text gives a Review and Overview of Sections 1.1 - 1.7. On the exam you will be
given the Basic Simple Interest Formulas, the Basic Compound Interest Formulas, and the formula for APY
as they are
Math 105 Spring 2010 Quiz 3 Answer Key
nt
n
r
r
m
t
F = P 1 + = P (1 + i ) F = P (1 + Y ) Y = 1 + 1
n
n
Version a:
1. Assume the annual rate of inflation is 4.2% for the next 5 years. What salary five years from now
will have the same purchasing power as
Math 105 Quiz 8A Spring 2010 Answer Key
The table below gives the enrollments in 4 divisions of a college. The administration wants to apportion 20 new
computers among the divisions based on their enrollments.
Division
Enrollment
Standard
Whole
+1?
Hamilt
Mathematics 105 Quiz #7A Answer Key
1. A fertilizer company makes lawn, garden, and general purpose fertilizer out of phosphate, nitrate, and potash.
The company analyst decides to let x, y, and z respectively, be the number of 100 lb. sacks of lawn, gard
Mathematics 105 Quiz #6 Answer Key
Version a:
1. A candy company makes two types of candy bars from caramel, nuts, and chocolate. A Chewy bar
contains 2 oz. of caramel, 3 oz. of chocolate, no nuts, and earns a profit of 20. A Nutty bar contains 1
oz. of c
Math 105 - 02 Quiz 2A Spring 2010 Answer Key
nt
n
r
r
m
t
F = P 1 + = P (1 + i ) F = P (1 + Y ) Y = 1 + 1
n
n
1. Jane invests in Certificate of Deposit that pays 5.4% annual interest compounded monthly.
(a) What is the APY? Write your answer as a percen
Mathematics 105 Quiz #5a Answer Key
nt
F = P (1 + i )m = P 1 + r n
FA =
(
)
PMT (1 + i ) 1
m
(
PMT =
i
FA i
(1 + i ) 1)
m
PV =
)
(
PMT 1 (1 + i )
m
i
)
PMT =
PV i
(1 (1 + i ) )
m
1. Tisha is taking out a $128,000 mortgage to buy a house. The mortgage is f
Mathematics 105
Study Guide for Test 4
Part 2 of Chapter 4 (4.4 4.7)
1. Know the definitions of standard divisor and standard quota, and be able to interpret their
meaning in a particular apportionment problem.
2. From given individual state populations (
Mathematics 105
Spring 2010
Study Guide for Test 2
Test 2 will be on Sections 2.1 - 2.5 of the text.
You will be given these formulas, and need to be able to use them: F = P(1 + i)m = P 1 +
FA =
PV =
(
)
PMT (1 + i ) 1
m
PMT =
i
(
PMT 1 (1 + i )m
i
)
PMT