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Ms. Rodriguez &
Ms. Rodriguez &

Ms. Rodriguez & - PowerPoint Presentation

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MsBerger September 29 2015 RATIOS Using ratio tables DO NOW Find the constant for the following to solve for the missing number   9 6 36 Find the value for the following ID: 541626 Download Presentation

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Presentation on theme: "Ms. Rodriguez &"— Presentation transcript

Slide1

Ms. Rodriguez & Ms.BergerSeptember 29, 2015

RATIOS:

Using ratio tablesSlide2

DO NOW

Find

the

constant

for the following to solve for the missing

number -

 

9

: 6 = __ : 36

Find

the

value

for the following

ratio - 24

: 9 Slide3

FOCUS QUESTION

How

can we use a table to create equivalent ratios?Slide4

Example #1To make Paper Mache, the art teacher mixes water and flour. For every two cups of water, she needs to mix in three cups of flour to make the paste.

Find equivalent ratios for the ratio relationship 2 cups of water to 3 cups of flour. Represent the equivalent ratios in the table below:

CUPS of WATER

2

4

CUPS

of FLOUR

3

6Slide5

Example #2:Rachel has a new fixing NASCAR cars. She is paid $700 for every 3 cars she repairs. Create a table to show how much money Rachel has earned after repairing 15 cars.

PAY

CARS

700

3

15

PAY

700

CARS

3

15Slide6

Rachel is saving money to pay for a college class that costs $4,900. How many cars does she need to fix to pay for her class?

PAY

700

1,400

2,100

2,800

3,500

CARS

3

691215Rachel needs to repair 21 cars to pay for her class. Slide7

Partner WorkSlide8

Assume each of the following represents a table of equivalent ratios. Fill in the missing values. Then choose one of the tables and create a word problem for the ratios shown in that table.

22

12

16

44

55

66

14

15

21

25

35

30

34

51

12

15

85

18

102Slide9

Independent Work!Slide10

James is setting up a fish tank. He is buying a breed of goldfish that typically grows to be 12 inches long. It is recommended that there be 1 gallon of water for every inch of fish length in the tank. Create a ratio table to answer the following questions:

What

is the recommended ratio of gallons of water per fully-grown goldfish in the tank?

What

size tank (in gallons) is needed for James to have 5 full-grown goldfish?

How

many fully-grown goldfish can go in a 40-gallon tank?

What

can you say about the values of the ratios in the table? Slide11

Amelia needs 2 jars of white paints for every nine jars black paint. Complete the ratio table below to answer the following questions:

White

Paint

2

Black Paint

9

How

many

jars of white paint does Amelia need if she has 45 jars of black paint?

Amelia has only 8 cups of white paint. How many jars of black paint does she need?

What

can you say about the values of the ratios in the table? Slide12

EXIT TICKET

A father and his young toddler are walking along the sidewalk. For every 3 steps the father takes, the son takes 5 steps just to keep up.

What is the ratio of number of steps the father takes to the number of steps the son takes?

Complete the table with labels and equivalent ratios.

What can you say about the values in the ratio table?