Review for District Post Test – Part 2
Name__________________________ Period______
District Post Assessment Schedule:
Wednesday, January 20 – Part 1 (no calculator)
Thursday, January 21 – Part 2 (calculator ok)
Question
Learning Targets
Level of Mastery
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

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1
Find a missing angle based on angle relationships.
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2
Use a scale drawing to find an actual length.
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3
Use part to part and part to whole ratios to find
missing values.
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4
Select displays of data (graphs, tables, equations)
that show proportional relationships.
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5
Solve multistep proportions problems with percents.
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6
Interpret a graph of a proportional relationship.
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7
Find the missing value from a table of a proportional
relationship.
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8
Write an equation relating two variables in a
proportional relationship.
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9
Find the constant of proportionality in an equation.
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10
Solve a proportion for a missing value in a real-world
situation.
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Next Step…
1
Find a missing angle based on angle relationships.
Without measuring, find the measure of angle ABC in degrees.
D
A
3x
x + 20
B
E
C
A
D
2x
3x + 15
C
B
E
2
Use a scale drawing to find an actual length.
Below is a scale drawing of a desk (looking at
the top). The scale that maps the drawing to
the actual desk is 1 inch to 1.2 feet.
Find all of the actual lengths of the desk in
feet. Set up and solve proportions with scale
factors.
6 inches = _______ feet
1 inch = _______ feet
3 inches = _______ feet
3.5 inches = _______ feet
2.5 inches = _______ feet
4 inches = _______ feet
Strategies:
3
Use part to part and part to whole ratios to find missing values.
Jackson adds 1/3 cup of cheese for every ¾ cup of sauce on his pizza. How
many cups of cheese would he need for 4 cups of sauce?
April adds 1/8 teaspoon of salt for every 1/4 cup of teaspoon of sugar in a
recipe. How many teaspoons of salt would she add to 1 teaspoon of sugar?
4
1. Select ALL the displays of data that represent a proportional
relationship between x and y.
A.
D.
x
y
F.
x
y
B.
C.
E.
1
6
2
7
1
3
1
5
2
3
2
5
3
8
1
3
5
4
9
4
3
4
5
x
y
0
0
1
21
x
1
5
1
25
1
6
1
36
G.
y
2
42
1
7
1
49
3
63
1
8
1
64
2. Select ALL the displays of data that represent a proportional
relationship between x and y.
A.
B.
C.
D.
x
y
F.
x
y
5
E.
0
0
1
2
1
5
2
6
4
12
1
3
2
3
5
2
5
x
y
6
18
0
0
1
1
2
8
3
27
G.
2
x
0
1
2
3
4
5
y
1
2
3
4
Solve multistep proportions problems with percents.
Ms. Monroe has a 16-ounce soda. She drinks 6 ounces. Enter the percentage of
ounces she has left from her soda. Round your answer to the nearest tenth.
Mr. Coyne has a 2 liter bottle of water. He drinks 0.8 liters. Enter the
percentage of liters he has left from his water. Round your answer to the
nearest tenth.
6
Interpret a graph of a proportional relationship.
True or False: The employees drink one
soda in 40 days.
True or False: The constant of
proportionality in this graph is (1,20).
B
True or False: Point B represents the
number of sodas that employees drink
after 80 days.
True or False: The total number of sodas
the employees drink in 1 day is 40.
7
Find the missing value from a table of a proportional relationship.
Find the missing values from the table:
Number of Cats
0
4
7
8
Number of Dogs
0
60
105
135
12
Write an equation relating two variables in a proportional relationship.
Write an equation that relates the number of dogs (d) to the number of cats
(c). Choose all that are correct:
A.
B.
C.
D.
E.
10
c = 0.7d
d = 0.7c
d = 15c
c = 15d
None of the above
Find the constant of proportionality in an equation.
What is the constant of proportionality in the equation above?
11
Solve a proportion for a missing value in a real-world situation.
Use the table and equation from the previous problems. If the animal shelter
has 300 dogs, how many cats do they have?