Unit Two: Quiz One

To make the same shade of gray, how many cups of white paint will they need to mix with 1 cup of black paint?

How many cups of black paint will they need to mix with 16 cups of white paint?

• 2 cups

• 4 cups

• 8 cups

• 16 cups

What is the constant of proportionality?

Tags

CCSS.7.RP.A.2B

What does the constant of proportionality mean in this situation?

Tags

CCSS.7.RP.A.2B

Mr. Garcia is riding his bike around the neighborhood as he does every Saturday morning. He completes 5 laps in 20 minutes. Complete the given table.

• 40, 44, 4, 4x

• 50, 55, 5, 5x

• 60, 66, 6, 6x

• 70, 77, 7, 7x

Tags

CCSS.6.RP.A.3B

2a. Write an equation that shows the time in minutes it takes Mr. Garcia to complete x laps at the same pace.

Tags

CCSS.7.RP.A.2C

If a situation describes a constant rate, it can often be written as a proportional relationship in the form of _________________

Tags

CCSS.7.RP.A.2D

4. A car travels 150 miles in 3 hours. What is the constant of proportionality for the speed?

Tags

CCSS.7.RP.A.2B

If the constant of proportionality is 5, and you have y = kx, what does the constant of proportionality mean in the context?

• For every 5 units of x, there are 5 units of y

• For every 1 unit of x, there are 5 units of y

• For every 5 units of y, there are 1 unit of x

• For every 5 units of x, there are 0 units of y

Tags

CCSS.7.RP.A.2B

6. A babysitter earns $10 per hour of work. Write an equation that shows the relationship between y, the total earnings and x, the number of hours?

Tags

CCSS.5.OA.B.3