Answer:
Step-by-step explanation:
We first let 0.38 (8 being repeated) be T.
Since z is recurring in 1 decimal places, we multiply it by 10. 10z = 3.88
Next, we subtract them. 10 r T 3.88 0.38 9x 3.5
Lastly, we divide both sides by 9 to get IC as a fraction. 3.5 T 9 35 90 7 18
Answer:
0.408 hour / device
Step-by-step explanation:
As we know The army contract was for 4,707 devices that were produced by 16 workers which means 1 worker can produce: ≈294 devices in 3 weeks.
<=> 294 devices= 3*40 hours
<=> 294 devices = 120 hours
<=> 1 device = 120/294 = 20/49 ≈ 0.408 hour
So it takes 0.408 hour for a worker to finish producing 1 devicein the army contract