7th Unit 5 Section C Checkpoint
Question 1
Solve for a:
a + 6.5 = -3.2
a = 9.7
a = -9.7
a = 3.3
a = -3.3
Question 2
Solve for b:
-4b = 30
b = -120
b = 120
b = -7.5
b = 7.5
Question 3
An elevator is descending at a rate of 2.5 feet per second. How long will it take the elevator to go down 20 feet?
Choose the equation that best represents the situation:
20 - x = 2.5
x + 2.5 = -20
20 ➗ -2.5 = x
-2.5x = -20
Question 4
A scientist is using a drone to explore a cave. Over a period of 6 seconds, the drone goes from 25 feet below the surface to 16 feet below the surface.
How fast is the drone moving upward? Explain your reasoning.
At this rate, when will the drone be 5 feet above the ground? Explain your reasoning.
Teach with AI superpowers
Why teachers love Class Companion
Import assignments to get started in no time.
Create your own rubric to customize the AI feedback to your liking.
Overrule the AI feedback if a student disputes.