A robot can complete 5 tasks in 2/3 hour. Each task takes the same amount of time.
a. How long does it take the robot to complete one task?
b. How many tasks can the robot complete in one hour?

a. 8 minutes

b. 7.5 tasks

Step-by-step explanation:

of an hour is just 40 minutes.

Let's use a ratio:

minutes : tasks

   40      :    5

     8       :    1

   20       :   2.5

   60       :   7.5

a. 8 minutes

b. 7.5 tasks

5/6

step-by-step explanation:

if i remember correctly with perpendicular stuff you just take away the negative

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10