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
Answer:
22
Step-by-step explanation:
5х+5=115
5х=115-5
5х=110
х=22
The sum is 18.14 hope it helps
1/2.....a perpendicular line will have negative reciprocal slopes...all that means is " flip " the slope and change the sign. So the negative reciprocal of 1/2 = -2/1 or just -2. so we have to make d/3 = -2.....so for that to happen, d has to be -6.
