________________________________
_________________
1.
Period
Date
Name
Ch. 4 Review
Find the
unit rate for number of parts manufactured per hour
if 1630
parts are made in
6
hours.
Round to the
nearest integer.
2.
A 16-oz bottle of water costs $1.44. What
is
the cost per ounce?
Solve the proportion.
3.
10.
2
11
—=—
x—8
4.
5
lox
2
4
5.
13_b
6
Write and
—
—
2—Oib
4
6
.
.
—
—
find how many gallons the van
7.
A van travels 220 miles on 10
needs to travel 550 miles.
8.
A package delivery company has determined that they can meet their schedules if they have 4 drivers for
every 30 square miles of area they cover. If they want to offer service to a county of 75 square miles, how
many drivers must they have?
9.
School guidelines require that there must be at least 2 chaperones for every 25 students going on a school trip.
How many chaperones must there be for 80 students?
gallons of gas.
solve a proportion to
The pair of figures is similar. Find x. Round to the nearest tenth if necessary.
11.
x
x
8ft
Drawing not to scale
311
18cm
Drawing not to scale
12.
A tree casts a shadow 10 ft long. A boy standing next to the tree casts a shadow 2.5 ft. long. The triangle
shown for the tree and its shadow is similar to the triangle shown for the boy and his shadow. If the boy is 5
ft. tall, how tall is the tree?
LI,,”,
2.5 ft
lOft
Drawing not to scale
13.
A map has a scale of 1 cm: 20km. Two cities are 2.5 cm apart on the map. To the nearest tenth of a
kilometer, what is the actual distance corresponding to the map distance?
14.
Use the scale and map measurements to find the actual distance from New Wilmington to Sharon through
Mercer. What is the actual distance if you travel from New Wilmington to Sharon through Volant?
1.25 in.
1 in.
1.75 in.
New Wilmington
1.75 in.
Volant
Scale I in.: 12 ml
Sharon
Oive eae.u pita
IIL
iIJIIU.
....
What percent of 20 is 18?
15.
60% of 60 is what number?
17.
19.
- --
16.
18.
What percent of 105 is 70?
What is 6% of 117?
30% of what number is 42?
the club’s members, how
bers are going. If this is 50% of
mem
74
and
aii,
Haw
to
trip
a
20. A golf club plans
many members are in the club?
commission on a sale of a new
er sales. If she earned a $81.04
put
com
her
on
sion
mis
com
21. Susan earns a 5%
system?
system, what was the price of the
103 ft. Describe the percent
ther balloon moves from 100 ft to
wea
a
if
e
tud
alti
in
nge
cha
of
t
22. Find the percen
essary.
e. Round to the nearest tenth if nec
of change as an increase or decreas
er an ad campaign to
e Mart sold 50 pairs of red loafers. Aft
Sho
t
Fee
us
ulo
Fab
ry,
rua
Feb
of
nth
23. During the mo
s.
rch. Find the percent of increase in sale
boost sales, they sold 60 pairs in Ma
24.
The circulation of a newsletter decreased from 5200 to 3140. Find the percent of decrease in circulation to the
nearest percent.
25.
A 1-in, length on the blueprint corresponds to an actual length of 3 ft.
In.
Living Room
4in.
Bathroom
.5iTL
2in.
a. What is the scale of the blueprint?
b. What are the actual dimensions of the bathroom?
c. What is the actual area of the bathroom?
ii
Wht i tlw wtitl sir nftht 1ivin rnnm
7
26.
Annual Home Budget
15%
27%
cLe( /‘
16%
/
3%
/5%
F
Housing
VehicIes
C] Grocery
Utilities
EJ Savings
C] Misc.
C] Fuel
10%
24%
Bob tracked his spending for the previous year. The given circle graph shows his
spending divided up into 7 categories. If Bob makes $89,600 per year, use the graph to
predict the amount of money that he will spend on miscellaneous costs this year.
(show your work)
Vacation Destinations
I
•,r 15%
rtlL L tl( S
22%
12%
Euroije
Caribbean
C] Paotic Islands
South rnerica
C] Middle East
Mi1d Ea
13%k-S4h -,-iia
A travel agent made the given circle graph. The graph divides up the destinations that
dnt3 chc fcr t p rcv ycr :t 5 ctecr!e. T!e ency s expetr’ to çrvicP
300 clients this year. Using the circle graph, predict the number of those clients who will
choose the Caribbean as their vacation destination.
show your work)
28.
i ve
Majors
13%
S Liberal Arts
S Fine Arts
O Sciences and
Mathematics
• Education
J Business
J Pre-Professional
14%
We -Proest-l
A university employee made the given circle graph that shows the number of majors by
department for the previous year. If the university is expecting 1,100 incoming
freshman this year, use the graph to predict the number of freshman who will be
majoring in either science or mathematics.
(show your work)
29.
Hours otT.V. Per Night
37%
22%
S None
5 1 hr.
C2hrs.
S More Than 2 hrs,
30%
Five hundred students were asked how many hours of TV they watch per night. The
•
a.
b.
c.
d.
.i
fk vr4 tr5nk
How many students watch at least 1 hour of te1evison per night?
What percent of students watch 2 hours of television per night?
What percent of students watch no more than 2 hours of television per night?
How many students watch no television?