Study Guide

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Compound Interest
Worksheets
Name.
Calculate the total amount of the investment or total paid in a loan in the
following situations:
1.)
You invested $52,400 at 60lo compounded annually for 5 years. What is your total return
on this investrnent?
Answer:
2.)
You borrowed $10,400 for 4 years at L2.7a/o and the interest is compounded serniannually. What is the total you will pay back?
Answer:
3.)
Your 2 year investment
your total return be?
of
$5,300 earns 2.9o/o and is compounded annually. What will
Answer:
4.)
You invested $100 at8.2o/o which is compounded annually
your $100. be worth in 7 years?
forT years. How much will
Answer:
5.) Your investment of $18,100 at 13.60/o compounded quarterly for 71/2 years will be worth
how much?
Answer:
6.) You invested your allowance of $27O which gets
How much will you have in 3 years?
15o/o
compounded annually for 3 years.
Answer:
7.) You gave your friend a short term 2 year loan of $43,000 at
What will be your total return?
3o/a
compounded annually.
Answer:
B.) Your investment of $1,200 gets 5.lo/o and is compounded semi annually for 7
What will your $1,200. be worth at the end of the term?
t/2
years.
Answer:
9.) You borrowed $95 for
will you pay back in full?
l
year at5.2o/o interestthat iscompounded semi annually. What
Answer:
10.) Your 6 and 213 year investment of $1,450 at 5.4o/a compounded monthly brought
a grand total of?
Answer:
@
h
tt p : //m sth " about.coft,
you
Name:
6.3 Dcy 2
Block:
Horneuuork
1) Giventhe
eguation
y: 35(0.57).
o) Does this eguation represent growth or decoy?
b) What is the ratz af growth ar decoy?
c) Whot is the initial volue?
d)Evsluateforx=5
2)
at eoch exponentiol function ond identify the initisl volue, the growth or decqy
fsctor, and the growth or decay rotg
Look
A)y=1.3'
D)y=1.9(0.2)'
B)
y=9(3).
E)y=0-91.
3) Ryan is savirg for his college tuition.
c)y-1.4(1.03)'
F-)y=16(0-75)'
He hos $2,550 in a sovirgs occount that pays 6.25%
onnual interest.
a) Write
b)
on exponential equation describing
this situation"
How much money will Ryan hove in his account 5 years from now?
4)
A used cor wcs purchosed
for $12,3?9 this yeor.
Esch year the cor's volue decreases
8.5%.
a) Write on exponential
equation describing this situotion.
b) Whot will the mrbe worth in2O2O?
5) Your baby brother
in{ection. The doctor scid thera cre probobly 50,00O,000
bacterio in his left e-rrr. The penicillin the doctor prescribed will killT% of the bocteria
every hour. How mony bacterio will be in your brother's esr in . . .
a)
I
doy
c) lweek
c)
3 hours
has on ear
Name
Algebra: System of Equations
Period
SYSTEM WORD PROBLEMS: Choose the best method to solve each problem
1.
7.
The sum of two numbers is 35.
Their difference is 13.
Find the numbers.
Arlene is 7 years older than Todd.
Their ages total43.
How old is each person?
2.
8.
The sum of two numbers is 48.
One number is 3 times the other.
Find the numbers.
The Drama club has 35 members.
There are 3 more girls than boys.
How many boys and girls are there?
a
9.
J.
A coat costs 3 times
as much as a pair
2 adult tickets and 3 student tickets cost $12.
1 adult ticket and2 student tickets cost $7.
How much does each kind of ticket cost?
of
pants.
Together they cost $180.
How much does each cost?
4.
10.
Joe has pigs and chickens on his farm.
There are a total of 22 animals.
There is a total of 46 feet.
How many pigs and chickens does he have?
Lisa is 3 years younger than Joanne.
Their ages total 33.
How old is each person?
5
11.
One number is 17 more than another number,
The sum of the two numbers is 25.
Find the numbers.
3 slices of cake and2 cookies cost $4.05,
2 slices of cake and 3 cookies cost $5.20.
What is the cost of each?
6.
1.2.
3 chairs and a table cost $149.
4 chairs and a table cost $177.
How much does each item cost?
One number is six times another number.
Copyright www.
It is also 12 more than twice the other number.
Find the numbers.
al
gebrafunsheets.com
Period
EXPONENTIAL FUNCTIONS
Match each function rule with the graph of the function.
A.
B.
c.
D.
E.
F.
G.
H.
K.
L.
2x
-1'],=
2'
!=
-zx
3'!=2-x
T: -2-x
Y=2x+3
6'Y=2x-3
7'
!:
-2x
8.
Y:
-zx +3
9.
! - -lx+3
! =
-10.
_11.
-3
lx+3
! - lx'3
! = -lx-3
-L2.
Copyright 20L2 www.a lgebrafunsheets.com

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