7th 2-3 Understand Proportional Relationships

Decide whether the table shows a proportional relationship between x and y.

• Yes, ratio y:x of 5:1

• Yes, ratio y:x of 1:5

• Yes, ratio y:x of 1:1

• Not a proportional relationship

Tags

CCSS.7.RP.A.2A

Decide whether the table shows a proportional relationship between x and y.

• Yes, ratio y:x of 10:1

• Yes, ratio y:x of 2:1

• Yes, ratio y:x of 4:1

• Not a proportional relationship

Tags

CCSS.7.RP.A.2B

Decide whether the table shows a proportional relationship between x and y.

• Yes, ratio y:x of 5:1

• Yes, ratio y:x of 1:5

• Yes, ratio y:x of 4:1

• Not a proportional relationship

Tags

CCSS.7.RP.A.2A

In a stationery​ design, the number of ovals is proportional to the number of squares. How many squares will there be when there are 75​ ovals?

• 30

• 750

• 375

• 15

Tags

CCSS.7.RP.A.2A

Decide whether the table shows a proportional relationship between x and y.

• Yes, ratio y:x of 1.4:1

• Yes, ratio y:x of 1:1.4

• Yes, ratio y:x of 1:3/4

• Not a proportional relationship

Tags

CCSS.7.RP.A.2A

Error Analysis  The table shows a proportional relationship between x and y. Katerina has to complete the table. Katerina incorrectly says the ratio y/x is 1/10. Complete the table. What error did Katerina likely​ make?

• She found and simplified x•y.

• She found and simplified x−y.

• She found and simplified x÷y.

• She found and simplified x+y.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

Decide whether the table shows a proportional relationship between x and y.

• Yes, ratio y:x of 25:1

• Yes, ratio y:x of 1:25

• Yes, ratio y:x of 1:50

• Not a proportional relationship

Tags

CCSS.7.RP.A.2A

Cooking: At a​ café, the cook uses a recipe that calls for eggs and milk. The amounts of eggs and milk have a proportional relationship. Complete the table.

• Eggs: 4, Milk: 9, Ratio 3:1

• Eggs: 9, Milk: 4, Ratio 3:1

• Eggs: 4, Milk: 9, Ratio 1:3

• Eggs: 3, Milk: 9, Ratio 3:1

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

Challenge: You are head of the​ city's Street Department. During​ snowstorms, you send out the trucks to do the plowing. The amount of snow and the number of trucks are shown in the table. For a​ 21-in. snowfall, how many trucks would you send​ out? Explain.

• 51

• 55

• 53

• 57

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

CCSS.6.EE.C.9

CCSS.6.RP.A.3

Which of the following​ statement(s) about the table​ is(are) true? MARK ALL THAT APPLY!

• The unit rate y/x for related pairs of x and y is 1/3.

• The table shows a proportional relationship.

• All the ratios y/x for related pairs of x and y are equivalent to 7.5.

• When y is​ 12, x is 4.

• When x is​ 13.5, y is 4.5.

Tags

CCSS.7.RP.A.2A