4.5 Proportional Relationships

What is the missing number?

Mathematical Equivalence

ON

How many words can be typed in 18 minutes?

Mathematical Equivalence

ON

Tags

CCSS.6.RP.A.3B

What is the constant of proportionality, k?

Mathematical Equivalence

OFF

Tags

CCSS.7.RP.A.2B

Write an equation for the relationship between the number of words typed, y, and minutes, x.

Mathematical Equivalence

OFF

Tags

CCSS.6.EE.C.9

How many minutes will it take to type 280 words?

Mathematical Equivalence

OFF

Tags

CCSS.6.RP.A.3B

The point (5, 70) tells us that Kate earned ​ (a)   dollars after working ​ (b)   hours.

• 70
• 5
• 14

What is the constant of proportionality?

Mathematical Equivalence

ON

Tags

CCSS.7.RP.A.2B

Write an equation to show the total dollars earned, y, when Kate works x hours.

Mathematical Equivalence

OFF

Tags

CCSS.8.EE.B.5

Kate worked 80 hours last month. How many total dollars did she earn?

Mathematical Equivalence

OFF

Kate wants to earn a total of $490. How many hours will she need to work?

Mathematical Equivalence

OFF

Tags

CCSS.7.RP.A.2D