Ratio and Proportion

What is a Ratio?

• Is a comparison of two quantities 
• To multiply two fractions 
• A number over another number
• Two decimals that can be multiplied

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the ratio to the picture shown, triangles to squares?

• 2:6
• 5:6
• 3:4
• 4:3

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CCSS.7.RP.A.1

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If there are 5 soccer players, 10 baseball players, and 15 basketball players, what is the ratio of baseball players to soccer players?

• 1 to 2
• 1 to 3
• 2 to 1
• 3 to 1

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CCSS.6.RP.A.1

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***PROPORTION***
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

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CCSS.7.RP.A.1

CCSS.7.RP.A.2

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Enter the missing numbers to create equivalent ratios. 
1 : 3
6 : 18
2 : _
4 : _

• 4 & 8
• 4 & 12
• 6 & 12
• 6 & 8

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CCSS.7.RP.A.2

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

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CCSS.7.RP.A.2

CCSS.7.RP.A.3

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

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CCSS.7.EE.B.4

CCSS.7.RP.A.2

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Solve the proportion.

• q=2
• q=9
• q=4.5
• q=6

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CCSS.7.RP.A.2

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Kenzie will save 15% if she opens a credit card.  She wants to buy a jacket for $120. How much will she save if she opens a credit card?

• $15
• $18
• $16
• $17

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CCSS.7.EE.B.3

CCSS.7.RP.A.2

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Cann Electronics has all of their electronics on sale for 20% off. If a computer originally cost $1,050, what is the new price?

• $210
• $840
• $787
• $1,260

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CCSS.7.EE.B.3

CCSS.7.RP.A.3