contestada

A robot can complete 7 tasks in
3/4 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?

Respuesta :

Answer:

A. 3/28

B.9 1/3

fichoh

Uisng the principle of proportional relationship, the time taken for the robot to ;

  • complete 1 task is 0.107 hours
  • 9.33 tasks will be completed in 1 hour

7 tasks = 0.75 hours

1 task = h

Cross multiply

7h = 0.75

h = 0.75/7 = 0.107 hour

B.)

Number of tasks that can be completed in one hour

7 tasks = 0.75 hours

h = 1 hour

Cross multiply

0.75h = 7

h = 7/0.75 = 9.33 tasks

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