Review: Fractions, Decimals, Percents and Scientific Notation

1
Proportions Review
2
On a map of Florida, two cities are 4 ½ inches
apart. If the map scale is ½ inch 1O miles,
how far is the actual distance between the two
cities?
.5 4.5 10 x

x 90 miles
3
A delicious snickerdoodle recipe calls for ¼ cup
of sugar for a batch of 24 cookies. If Heather
wanted to make 48 cookies, how much sugar would
she need?
.25 x 24 48

x ½ cup of sugar
4
In a survey at Peasley Middle School, 3 out of 4
students said they liked pizza for lunch. If 144
students were in the survey, how many students
like pizza for lunch?

3 x 4 144
x 108 students
5
The two triangles below are similar. Which side
corresponds to AB?
A
E
B
C
G
F
EF
6
Solve for x in the following similar triangles.
Round to the nearest tenth.
16 ft.
9 x 13 16

13 ft.
x 11.1 feet
x
9 ft.
7
A tree casts a 10 foot shadow. If a 5 foot woman
casts a 4 foot shadow, how tall is the tree?
5 x 4 10

x 12.5 feet
8
If 3 pounds of ham costs 6.25, what would the
cost be for 5 pounds?
6.25 x 3 5

x 10.42
9
Sarah bought 4 pounds of candy for 9.50. How
much did the candy cost per pound?
9.50 x 4 1

x 2.38 per pound
10
A blueprint for Megans new house has a scale of
½ cm 2 feet. If her bedroom is 8 cm in length,
what is the actual length of her bedroom?
.5 8 2 x

x 32 feet