Ratios and Proportions

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

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

In my fish tank, the ratio of red fish to blue fish is 3:5. There are 20 blue fish. How many red fish are there?

• 18
• 12
• 4
• 15

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Tags

CCSS.7.RP.A.2B

Solve for x

• x=6
• x =1/6
• x = 7
• x=9

Tags

CCSS.7.RP.A.2B

Solve the proportion.

• -3

• -1.5

• 2.1

• 9

Tags

CCSS.7.EE.B.3

Solve for x

• 1/2
• 25/8
• 11
• 53/4

Tags

CCSS.6.EE.B.7

Solve for k

• 165
• 17
• 1/17
• 1/165

Tags

CCSS.7.EE.B.3

Solve the proportion

• 144
• 4
• 6
• 9

Tags

CCSS.7.RP.A.2B

There were 5 ice cream cones for every 3 brownies sold at the ice cream shop. If there were 24 brownies sold, how many ice cream cones were sold?

• 8
• 15
• 40
• 29

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3