Proportional Relationship Review

A small animal can eat an amount of food that is equivalent to 2/5 its body weight in 1/2 hour. At this rate, what fraction of its body weight in food can the animal eat in 1 hour?

Tags

CCSS.7.RP.A.1

Explain your reasoning for this problem.

Tags

CCSS.7.RP.A.2D

Is this relationship proportional?

• Yes

• No

Tags

CCSS.7.RP.A.2D

Answer all of the parts.

Tags

CCSS.7.RP.A.2D

Find the constant of proportionality.

Tags

CCSS.7.RP.A.2B

A student uses the point (4,280) to write the equation y=70x. The student claims that this equation represents the relationship shown in the graph because 280 divided by 4 is 70. Explain the error in the student's reasoning. Use a different point from the graph to explain why the student's equation does not represent the relationship shown in the graph.

Tags

CCSS.8.EE.B.5

The table shows a proportional relationship between the number of pounds of grapes purchased and the total cost of the grapes. A row of values is missing in the table. Which number of pounds or grapes and total cost of the grapes could be used as the missing values in the table? Select all of the correct answers.

• Pounds of Grapes: 2

  Total Cost: $1.38

• Pounds of Grapes: 3

  Total Cost: $2.53

• Pounds of Grapes: 6

  Total Cost: $3.68

• Pounds of Grapes: 8

  Total Cost: $5.52

• Pounds of Grapes: 11

  Total Cost: $8.97

Tags

CCSS.7.RP.A.2B

Which of the following show a proportional relationship?

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Tags

CCSS.7.RP.A.2D

The table shows the number of pages a student reads and how many minutes it takes the students to read those pages. Which statement best describes the relationship in the table

• The number of minutes is proportional to the number of pages, with a unit rate of 1.5 minutes per page.

• The number of minutes is proportional to the number of pages, with a unit rate of 2.25 minutes per page.

• The number of minutes is proportional to the number of pages, with a unit rate of 4.5 minutes per page.

• The relationship in the table is not proportional.

Tags

CCSS.7.RP.A.2A

Which table shows a proportional relationship between x and y?

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Tags

CCSS.7.RP.A.2A