12-8 PPT

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5 Minute Check
Complete in your notes.
1. 424 kilometers in 8 hours as a unit rate.
2. $60 for 12 months as a unit rate.
3. You have 40 cards you want to divide into
two groups so the ratio is 3:2. How many is in
each group?
4. After working for 24 hours, Zoe made $234.
After working for 40 hours, Zoe made $390.
Predict how much she would make after 10
hours of work.
5 Minute Check
Complete in your notes.
1. 424 kilometers in 8 hours
5 Minute Check
Complete in your notes.
1. 424 kilometers in 8 hours
424 ๐‘˜๐‘š
8 โ„Ž๐‘Ÿ๐‘ 
=
๐‘ฅ ๐‘˜๐‘š
1 โ„Ž๐‘Ÿ
424 x 1 ÷ 8 = 53
53 ๐‘ ๐‘ก๐‘ข๐‘‘๐‘’๐‘›๐‘ก๐‘ 
1 โ„Ž๐‘Ÿ
5 Minute Check
Complete in your notes.
2. $60 for 12 months
5 Minute Check
Complete in your notes.
2. $60 for 12 months
$60
12 ๐‘š๐‘œ๐‘›๐‘กโ„Ž๐‘ 
=
$๐‘ฅ
1 ๐‘š๐‘œ๐‘›๐‘กโ„Ž
60 x 1 ÷ 12 = 5
$5
1 ๐‘š๐‘œ๐‘›๐‘กโ„Ž
5 Minute Check
Complete in your notes.
3. You have 40 cards you want to divide into
two groups so the ratio is 3:2. How many is in
each group?
5 Minute Check
Complete in your notes.
3. You have 40 cards you want to divide into
two groups so the ratio is 3:2. How many is in
each group?
Method 1
3x + 2x = 40 ; x is the number of cards in each group.
5x = 40
x = 8; groups are 3 · 8; 2 · 8; 24;16
5 Minute Check
Complete in your notes.
3. You have 40 cards you want to divide into
two groups so the ratio is 3:2. How many is in
each group?
Method 2
40 cards
3
:
2
5 section = 8 per section; 24:16
5 Minute Check
Complete in your notes.
4. After working for 24 hours, Zoe made $234.
After working for 40 hours, Zoe made $390.
Predict how much she would make after 10
hours of work.
5 Minute Check
Complete in your notes.
4. After working for 24 hours, Zoe made $234.
After working for 40 hours, Zoe made $390.
Predict how much she would make after 10
hours of work.
$234
24 โ„Ž๐‘œ๐‘ข๐‘Ÿ๐‘ 
=
$๐‘ฅ
1 โ„Ž๐‘Ÿ
234 x 1 ÷ 24 = $9.75
$9.75 x 10 = $97.50
Monday, Dec 8
Chapter 6.2
Review
Chapter 6.2 Review
1. At Medina Middle School, 2% of the students
ride bikes to school. If 950 students attend
Medina Middle School, how many students ride a
bike to school?
Chapter 6.2 Review
1. At Medina Middle School, 2% of the students
ride bikes to school. If 950 students attend
Medina Middle School, how many students ride a
bike to school?
2% of 950 is
950
x.02
19.00 students
Chapter 6.2 Review
5
(F
9
2. The formula C =
– 32) can be used to convert
a temperature from degrees Fahrenheit to degrees
5
Celsius. What is
as a decimal?
9
Chapter 6.2 Review
5
(F
9
2. The formula C =
– 32) can be used to convert
a temperature from degrees Fahrenheit to degrees
5
Celsius. What is
as a decimal?
9
.55
9)5.00
-45
50
0.5
Chapter 6.2 Review
3. Sanford’s Shoe Store received a shipment of
shoes for its newest location. The manager
determined that 35% of the shoes were athletic
shoes. What fraction of the shoes were athletic
shoes?
Chapter 6.2 Review
3. Sanford’s Shoe Store received a shipment of
shoes for its newest location. The manager
determined that 35% of the shoes were athletic
shoes. What fraction of the shoes were athletic
shoes?
35% =
=
Chapter 6.2 Review
4. Mark got 18 out of 25 questions correct on his
science test. What percent of the questions did he
get correct?
Chapter 6.2 Review
4. GRIDDED RESPONSE Mark got 18 out of 25
questions correct on his science test. What
percent of the questions did he get correct?
72
18
=
= 72%
100
25
Chapter 6.2 Review
5. The graph shows the elements found in Earth’s
crust. What fraction of Earth’s crust is silicon?
Chapter 6.2 Review
5. The graph shows the elements found in Earth’s
crust. What fraction of Earth’s crust is silicon?
28% =
28
100
=
7
25
Chapter 6.2 Review
6. The fastest fish in the world is the sailfish. If a
sailfish could maintain its speed, as shown in the
table, how many miles could the sailfish travel in
6 hours?
Chapter 6.2 Review
6. The fastest fish in the world is the sailfish. If a
sailfish could maintain its speed, as shown in the
table, how many miles could the sailfish travel in
6 hours?
1 hr
6 hrs
68 miles = ? miles
68 x 6 ÷ 1 = 408 miles
Chapter 6.2 Review
7.Carlita planted 4 flowers in 9 minutes. About
how many flowers can Carlita plant in 36
minutes?
Chapter 6.2 Review
7.Carlita planted 4 flowers in 9 minutes. About
how many flowers can Carlita plant in 36
minutes?
4 flowers
? flowers
9 minutes = 36 minutes
4 x 36 ÷ 9 = 16 flowers
Chapter 6.2 Review
8. What is the ratio of people to buses?
Chapter 6.2 Review
8. What is the ratio of people to buses?
6 buses
1 bus
150 people = 25 people
1:25
Chapter 6.2 Review
8. What is the ratio of people to buses?
150 people
6 buses
=
25:1
25 people
1 bus
Chapter 6.2 Review
9. A school population was predicted to increase by
50 students a year for the next 10 years. If the
current population is 700 students, what will be
the enrollment after 10 years?
Chapter 6.2 Review
9. A school population was predicted to increase by
50 students a year for the next 10 years. If the
current population is 700 students, what will be
the enrollment after 10 years?
700 students + 50 a year x 10 years = 1200 students
Chapter 6.2 Review
10. Pam is painting a total of 45 square feet in her
bedroom. If she has painted 60% so far, how many
square feet of the bedroom does Pam still need to
paint?
Chapter 6.2 Review
10. Pam is painting a total of 45 square feet in her
bedroom. If she has painted 60% so far, how many
square feet of the bedroom does Pam still need to
paint?
60% of 45 =
.60 x 45 = 27 sf
Chapter 6.2 Review
10. Pam is painting a total of 45 square feet in her
bedroom. If she has painted 60% so far, how many
square feet of the bedroom does Pam still need to
paint?
40% of 45 =
.40 x 45 = 18 sf
Or
45 sf – 27 sf = 18sf
Chapter 6.2 Review
11. A class of 26 students ordered the items shown
in the table.
If the class agreed to split
the cost evenly, how
much will each student pay?
Chapter 6.2 Review
11. A class of 26 students ordered the items shown
in the table.
If the class agreed to split
the cost evenly, how
much will each student pay?
27 x $1.25 + 5 x $1.99 + 1 x $1.50 =
$33.75 + $9.95
+ $1.50 = $45.20
$45.20
$1.74
26 students = 1 student
Chapter 6.2 Review
12. SHORT RESPONSE Refer to the table below.
If the Williams family has a
monthly income of $3,000,
how much do they spend on
clothing and entertainment?
Chapter 6.2 Review
12. SHORT RESPONSE Refer to the table below.
If the Williams family has a
monthly income of $3,000,
how much do they spend on
clothing and entertainment?
12% of $3,000 =
.12 x 3000 = $360
Chapter 6.2 Review
13. EXTENDED RESPONSE Copy the models
below. Both models have the same area.
A.
B.
Part A Shade 0.25 of Model A.
1
3
Part B Shade of Model B.
Part C Which model has the greater fraction of shaded
area? Explain your answer.
Chapter 6.2 Review
13. EXTENDED RESPONSE Copy the models
below. Both models have the same area.
Model A
Model B
Part C Which model has the greater fraction of
shaded area? Explain your answer.
Chapter 6.2 Review
13. EXTENDED RESPONSE Copy the models
below. Both models have the same area.
Model B has a greater fraction shaded.
Proof:
1 = .33 > .25
3
Chapter 6.2 Review
14. 14 is 35% of what number?
Chapter 6.2 Review
14. 14 is 35% of what number?
35
14
100 = ?
7
14
20 = ?
20 · 14 ÷ 7 = 40
Chapter 6.2 Review
Agenda Notes
Dec 8 In-Class assignment
Raise hand when complete
Homework–
Homework Practice CH 6.2 Review
Due Tuesday, December 9
Semester Exam
Thursday, Dec 18
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