Answer:
We conclude that the constant of proportionality between the number of shirts and how much they cost is:
k = 8
Hence, option 'D' is correct.
Step-by-step explanation:
We know that when 'y' varies directly with 'x', we get
y ∝ x
y = kx
k = y/x
where k is called the constant of proportionality
Given the points
For (10, 80)
substituting y = 80 and x = 10 in the equation
k = y/x
k = 80/10 = 8
For (20, 160)
k = y/x
k = 160/20 = 8
For (50, 400)
k = y/x
k = 400/50 = 8
It is clear that the value of k is the same for all the points.
Thus, the value of k = 8
Therefore, we conclude that the constant of proportionality between the number of shirts and how much they cost is:
k = 8
Hence, option 'D' is correct.
Answer ( if trying to find x ) :
x = 44
Step-by-step explanation:
5 x 7 = 35 ( area of picture )
120 -> ( area of the whole picture + frame )
120 - 35 = 85 ( area of just the frame )
factor's of 85 -> 1 ,5 ,17 ,85 ( can't be 1 by 85 inch's picture ,so you get 5 by 17 )
5 + 5 + 17 + 17 = 44 (perimeter of the frame ( perimeter formula= l + l + w + w ) )
44 inch's ( ? )
Answer:
N = 18°
Step-by-step explanation:
Answer: 49.
It's 49 minutes
Step-by-step explanation:
I don't feel like explaining. It's 49 minutes.
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