Setting up Proportions

Pat needs 14 sticks of pepperoni to make 28 pizzas. How many sticks of pepperoni are needed to make 36 pizzas?

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CCSS.7.RP.A.2C

A car travels 420 miles in 8 hours. If the car continues at the same rate, how far will it travel in 12 hours?

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CCSS.7.RP.A.2C

Ms. King's P.E. class has 25 students. 16 of these students are boys. How many boys would there be if the class had 40 students?

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.RP.A.3

Hamburger meat sells for $6 for every 3 pounds. If Alicia buys 10 pounds of hamburger meat, how much will she pay?

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CCSS.6.RP.A.3B

A group of students were asked about their favorite foods. Out of the 50 students surveyed, 30 listed pizza among their favorite foods. At that rate, if 190 students were surveyed, how many would list pizza as a favorite food?

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CCSS.6.RP.A.3B

3 meals at Jason's Deli cost $27. How much money would 12 meals cost?

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CCSS.7.RP.A.2C

Danielle used 8 centimeters of tape to wrap 4 presents. How many presents did Danielle wrap if she used 30 centimeters of tape?

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CCSS.7.RP.A.3

What is a proportion?

• When two ratios can be simplified
• When two ratios are equivalent and show the same value
• When two ratios have the exact same numbers
• When two ratios can be multiplied by 2

Tags

CCSS.7.RP.A.2A

What is a ratio?

• when the only factor of the numerator and denominator is one

• two decimals that can be multiplied

• a comparison of two quantities

• to multiply two fractions

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Determine if the ratios are proportional.
4/5 and 15/20

• Yes
• No

Tags

CCSS.7.RP.A.2A