Proportions and Equivalent Ratios

Which is NOT equivalent to 3:5?

• 15:25
• 9:15
• 21:28
• 30:50

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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

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CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

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.6.RP.A.3B

Solve the proportion:

• 4
• 8
• 14
• 10

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CCSS.7.RP.A.2

CCSS.7.RP.A.3

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

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CCSS.7.RP.A.2

CCSS.7.RP.A.3

Solve for x

• x=6
• x =1/6
• x = 7
• x=9

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CCSS.7.RP.A.2B

Solve the proportion.

• p=31.3
• p=308
• p=924
• p=532

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CCSS.7.RP.A.2

CCSS.7.RP.A.3

Equivalent ratios are also called?

• Rates

• Proportional

• Greatest Common Factors

• Variables

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CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Totsakan enlarged the size of a photo to a height of 18 in.  What is the new width if it was originally 2 in. tall and 1 in. wide? 

• 1/9
• 9
• 36
• 1:3

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CCSS.7.G.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Write if the given proportion is 'True' or 'False':
8 : 9 = 24 : 18

• TRUE
• FALSE
• dont know
• none of these

Tags

CCSS.7.RP.A.2