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Ratios
Unit Price
Which is the better buy?
Which is the better buy?
Define me
100

In a drawing, there are three circles, four stars, and three triangles. What is the ratio of stars to the total number of shapes.

What is 2/5 or 4/10

100
$10.00 for 4 m
What is 2.50 m
100
detergent: $1.99 for 32 fl oz or $2.49 for 50 fl oz
What is $2.49.
100
$2.69 for 12 oz or $3.19 for 16 oz
What is $3.19
100

Comparison of two different things

Ratio

200

Lil blew up 7 balloons. Kathy blew up 5 balloons. What is the ratio of total balloons to Kathy's balloons?

12 to 5

200
Unit price of a $3.60 item consisting of 30 units?
What is $0.12.
200
popcorn $1.69 for 15 oz or $2.99 for 30 oz
What is $2.99
200
socks $4.29 for 3 pairs or $10.79 for 8 pairs
What is $10.79
200

Price per one unit 

Unit Price 

300

The recipe calls for 2 eggs, 8 cups of flour, 3 teaspoons of oil, and a pinch of salt. What is the ratio of cups of flour to eggs?

8:2 OR 4:1

300
Unit price of a $14.32 item consisting of 3 uits?
What is $4.77
300
apples $1.89 for 3lb or $2.49 for 5 lb
What is $2.49
300
orange juice $1.49 for 12 oz or $1.79 for 16 oz
What is $1.79
300
Find unit price by dividing   ____/_____

Cost ($)/ Number or quantity or item

400

There are 10 rabbits in a cage. The ratio of white rabbits to grey rabbits is 3:7. How many white rabbits are in the cage?

3 white rabbits

400
Unit price of a $37.12 item consisting of 22 units?
What is $1.69.
400
bagles $0.89 for 4 or $1.39 for 6
What is $0.89
400
cloth $3.15 for 2 yd or $7.78 for 6 yd
What is $7.78
400
X:Y


X to Y


X/Y 

Ways to write ratios

500

There are 5 mice in a cage. The ratio of pink mice to black mice is 2:3. How many black mice are in the cage?

3 mice

500
Price of a $16.46 item consisting of 31 units?
What is $0.53.
500
$1.25 for 4 or $5.69 for 25
What is $5.69
500
juice $2.15 for 48 fl oz or $2.89 for 64 fl oz
What is $2.15
500

The ratios    1:5 and  2:10 are ________ ________

Equivalent ratios