Unit 3 Proportionality and Ratios

Your brother has a bag of marbles.  He has 8 green marbles, 3 blue marbles, 7 red marbles, and 2 yellow marbles.  What is the ratio of blue marbles to red marbles?

• 3 to 8

• 3 : 7

• 2 to 7

• 2 : 3

Tags

TEKS.MATH.7.4D

What is a Ratio?

• Is a comparison of two quantities 

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one 

• Two decimals that can be multiplied

Tags

TEKS.MATH.7.4D

Kelly has 10 apps on her iPad.
5 are school apps, 2 are music apps, and 3 are games.
What is the ratio of school apps to game apps?

• 5 to 2

• 3 to 5

• 5 to 10

• 5 to 3

Tags

TEKS.MATH.7.4D

What mathematical operation do ratios involve?

• addition

• subtraction

• multiplication

• division

Tags

TEKS.MATH.7.4D

Which of the following expresses a ratio?

• 2/3

• two-thirds

• 0.667

• 2.3

Tags

TEKS.MATH.7.4D

Simplify the ratio of
35 : 14

• 5 : 2

• 2 : 5

• 3 : 1

• 35: 14

Tags

TEKS.MATH.7.4D

In the fruit bowl there are 4 apples, 2 bananas, and 5 pears.  What is the ratio of pears to ALL fruit?

• 5:4

• 5:11

• 2:5

• 6:5

Tags

TEKS.MATH.7.4D

Which is the correct ratio for 14 apples to 23 grapes

• 23 : 14

• 14 to 14

• 14 : 23

• 23 to 23

My mother purchased 8 Pepsi products at Bi-Lo for $14.00.  What is the price per product?

• $2.00 per product

• $1.50 per product

• $1.75 per product

Tags

TEKS.MATH.7.3A

Which rate is equivalent to $9 per hour?

• $27 in 3 hours

• $28 in 4 hours

• $33 in 3 hours

Tags

TEKS.MATH.7.4B