Wednesday, November 20th

Sparkplug Agenda• Make game board• Unit 3 Review Game

Tyriese has blueprints for his future mansion. The scale for the blueprints is 1 inch = 6 feet. How many feet would the actual length of the mansion be if it is shown as 8 inches on the blueprints?

1. Write the scale as a ratio.

2. Write a proportion.3. Solve the proportion.

Unit 3 Review GameRatios

and Rates

Scale Drawings

and Models

Proportions

Proportional

Relationships

Percent Proportio

n

Percent of

Change

Unit 3 Review GameRatios &

Rates

Scale Drawings &

ModelsProportions Proportional

RelationshipsPercent

ProportionPercent of

Change

100

200

300

400

500

100

200

300

400

500

100

200

300

400

500

100

200

300

400

500

100

200

300

400

500

100

200

300

400

500

Ratio & Rates 100

Answer: 3/11

9 Students out of 33 students

Express as a fraction in simplest form

Ratio & Rates 200

Answer: 3/4

12 hits out of 16 times at bat

Express as a fraction in simplest form

Ratio & Rates 300

Answer: 5/3

30 hours to 18 hours

Express as a fraction in simplest form

Ratio & Rates 400

Answer: 1/4

5 quarts to 5 gallons

Express as a fraction in simplest form

Ratio & Rates 500

Answer: 5/24

10 inches to 4 feet

Express as a fraction in simplest form

Scale Drawing & Models 100

Answer: 40

On a map of Florida the scale is 1in = 20 mi.

If the distance between Tampa and St. Petersburg is 2 inches, how many miles is

that?

Scale Drawing & Models 200

Answer: 92.8 ft

A model airplane is built using a 1:16 scale. On the model, the length of the wing span is 5.8 feet. What is the actual length

of the wing?

Scale Drawing & Models 300

Answer: 51 feet

A builder is designing a swimming pool that is 8.5

inches on the scale drawing. If the scale is 1in = 6ft what is the

actual length of the pool?

Scale Drawing & Models 400

Answer: 1/48

A set of landscape plans shows a flower bed that is 6.5 inches wide. The scale on the plan is 1 in = 4 ft

What is the scale factor?

Scale Drawing & Models 500

Answer: 1in = 4 ft

A man in a photograph is 1.5 inches in height. If the man is 6 ft tall, what is the

scale?

DailyDouble!

Proportions 100

Answer: Yes

Determine if the pair of ratios form a proportion:

5.3 2.7

15.9 8.1,

Proportions 200

Answer: x = 1.4

Solve the proportion:

7 x

45 9=

Proportions 300

Answer: a = 0.8

Solve the proportion:

a 4

0.28 1.4=

Proportions 400

Answer: 5 boxes

Solve the proportion:

8 pencils in 2 boxes

20 pencils in x boxes

Proportions 500

Answer: y = $25.20

Solve the proportion:

y dollars for 5.4 gallons

14 dollars for 3 gallons

Proportional Relationships100

Does the function table below show a proportional relationship?

If so, what is the

Constant of proportionality?

Answer: yes : 5

Proportional Relationships 200

Answer: yes : 1

Does the graph show a proportional relationship? If so, what is the constant

of proportionality?

Proportional Relationships 300

Answer: no

Does the graph show a proportional

relationship? If so, what is the constant of

proportionality?

Proportional Relationships 400

Answer: no

Does the table below show a proportional relationship? If so, what is the constant of proportionality?

Timehours

0 1 2 3 4 5

Paperflowers

0 10 20 30 45 50

Proportional Relationships 500

Answer:

If the constant of proportionality of a situation is equal to 5, how would you write an equation in

terms of y and x?

y = 5x

Percents Proportion 100

Answer: 45%

72 is what percent of 160?

Percents Proportion 200

Answer: 50

36 is 72% of what number?

Percents Proportion 300

Answer: 126

What is 84% of 150?

Percents Proportion 400

Answer: 112

14 is 12½ % of what number?

Answer: 411.4

Percents Proportion 500

36 is 8¾% of what number?

Percent of Change 100

Answer: 29.7% decrease

Find the percent of change from $9.25 to $6.50. State if

increase or decrease

Percent of Change 200

Find the percent of change from 75 minutes to 100 minutes. State if

increase or decrease

Answer: 33.3% Increase

Percent of Change 300

Answer: 600% Increase

Find the percent of change from 15 songs to 105 songs. State if increase or decrease

Percent of Change 400

Answer: 5.5 years

Using the formula I=prt, determine how long it would take to earn $495 interest on $2,000 invested at a rate of

4.5%

Percent of Change 500

Answer: 4.75%

Using the formula I=prt, determine the interest rate on

$1600 invested for 6 years which earned $456 in interest