R5 Ratio Review
 
 
1)
Write the ratio in simplest form.
15
9
=
2)
6 to 4 =
Write the ratio in simplest form.
3)
15 to 5=
Write the ratio in simplest form.
4) three oranges for $.99

Find the unit rate (how much for one).

3 oranges

99 cents

=
1 orange

cents

5) 198 miles on 9 gallons

Find the unit rate (how much for one).

198 miles

9 gallons

=
1 gallon

miles

Solve the proportion to find the missing value.

 

6)

2
3
=
15

Solve the proportion to find the missing value.

 

7)

12

9

=

20

Solve the proportion to find the missing value.

 

8)

10

8

=

20

9) Find the missing length in the similar figures.
5 cm
2 cm
x cm
6 cm
2 cm
cm
=
5 cm
cm
10)  Find the missing length in the similar figures.
16 inches
inches
=
24 inches
inches
=
21 inches
28 inches
Write each number as a percent.
11) 
3
5
=
%
Write each number as a percent.
12) 

18

25

=
%
Write each number as a percent.
13) 

0.08

=
%

Write each percent as a decimal and as a fraction

in simplest form.

14)  150% =       &

improper

form

Write each percent as a decimal and as a fraction

in simplest form.

15)  3% = 0      &
16) 0.5% = 0      &

Write each percent as a decimal and as a fraction

in simplest form.

17) 75% = 0      &

Write each percent as a decimal and as a fraction

in simplest form.

18)  What is 8% of 50?

Write a proportion and solve.

=
100%
%

19)  What percent of 50

is 30?

Write a proportion and solve.

=
100%
%

20)  20 is 80% of what

number?

Write a proportion and solve.

=
100%
%

21)  What percent of 25

is 40? 

Write a proportion and solve.

=
100%
%
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