Answer:
A is y-4 x-4
B is y-3 x-2
C is y-1 x-2
D is y-1 x-4
Step-by-step explanation:
look at where they are lined up from y to x
Answer:
18-3y.
Step-by-step explanation:
3 x 6 = 18
3 x -1y= -3y.
Answer:
#7: MK, LS and PR
#8: PN and PQ
#9: no
#10: no
Step-by-step explanation:
#7: lines MK, LS and PR are not intersecting each other, so these lines are parallel each other
#8: between lines PN and PQ is an right angle, so the lines PN and PQ are perpendicular
#9: lines PN and KM have an intesecting point, so they're not parallel
#10: there is no right angle between lines PR and NP
68= 4x-2+30 (notice they are vertical angles)
68= 4x+28
40=4x
10=x
68+y= 180 (forms a straight angle)
y=112
Final answer: x=10, y=112
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
