Ratio and Proportions

88 students for 4 classes
How many students per class?

• 22 students per class
• 22 classes per student
• 25 students per class
• 25 classes per student

Tags

CCSS.5.NBT.B.6

CCSS.5.NF.B.3

Which is NOT equivalent to 3:5?

• 15:25
• 9:15
• 21:28
• 30:50

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

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

If we have the following recipes for juice, which one will taste the most cherry:
Sam:  1 part cherry, 4 parts sprite 
Katie: 2 parts cherry, 4 parts sprite
Michael: 6 parts cherry, 8 parts sprite 

• Michael
• Katie
• Sam

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

Jose swims 3 laps in a pool every 2 minutes. How long would it take him to swim 27 laps?

• 8 minutes
• 9 minutes
• 16 minutes
• 18 minutes

Tags

CCSS.6.RP.A.3B

There are 4 birds and 6 snakes. What is the ratio of birds to total animals?

• 4/10
• 4/6
• 6/4
• 10/4

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Make the percent to decimal.
7%

• .007
• 0.07
• 7
• 70

Tags

CCSS.7.RP.A.3

Make the percent to decimal.
0.32%

• 32
• 0.32
• 3.2
• 0.0032

Tags

CCSS.5.NBT.A.3

Write 3/5 as a percent.

• 3%
• 30%
• 5%
• 60%

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Write 0.17 as a percent.

• 1.7%
• 17%
• .0017%
• 170%

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.3