Proportional Relationships- 7R

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

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which one is a real life example of a RATIO?

• 12 noodles
• 4 meatballs : 1 cup of sauce
• 1 jar of sauce
• 15 desserts

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What do we look for to compare ratios?

• equivalent ratios

• rate

• unit rate

• division

Is this table proportional?

• Yes
• No

Tags

CCSS.7.RP.A.2A

How can you tell if a graph is proportional?

• straight line

• goes through origin

• constant unit rate

• constant unit rate (straight line) and goes through origin

Which graph is non-proportional?

• A
• B
• C
• D

Tags

CCSS.7.RP.A.2D

Does the table represent a proportional relationship?

• Yes.
• No.

Tags

CCSS.7.RP.A.2A

It costs $8.21 for 3 candy bars; How much does 1 cost?

• 2.73
• 6.90
• 71.8
• 76.0

Tags

CCSS.6.NS.B.3

Find the unit rate:  $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?

• $1.00 per pound
• $3.60 per pound
• $1.20 per pound
• $1.10 per pound

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2