Proportional Relationships

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound
• $5 per pound
• $35 per pound
• 0.125 pounds per dollar

Elijah earn $200 for 8 hours of work. What is the unit rate (in dollars per hour)?

• $50 per hour
• $12 per hour
• $192 per hour
• $25 per hour

A store sees 120 customers in 8 hours. What is the unit rate (in customers per hour)?

• 16 customers per hour
• 15 customers per hour
• 12 customers per hour
• 20 customers per hour

Alycia earned $20.40 in 3 hours. What is her unit rate in dollars per hour?

• $7 per hour
• $6 per hour
• $6.80 per hour
• $17.40 per hour

A proportional relationship can be written as an equation in the form ____ = _____  _____

• y = k+x
• y = k-x
• y = kx
• y = k/x

Tags

CCSS.7.RP.A.2C

Which of the following is the correct formula for finding the constant of proportionality?

• k = x/y
• k = y/x
• y = k/x
• x = k/y

What does k represent in the equation y = kx?

• konkrete kids
• constant of proportionality
• kangaroos
• krispy kreme

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14
• 1/14

The constant of proportionality in the equation y = ½x is _______. 

• x
• y
• 1/2
• 2

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

CCSS.6.EE.C.9

The constant of proportionality in the equation y =0.4x is _______.

• x

• y

• 0.4

• 4