Hey!
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-x = -1
This statement shows that y equals -1. Since it doesn't show a table or word problem then we already know that the constant of proportionality is -1. Or if you just have the expression just divide the number by 1. -x/1 = -1!
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Thus, -1 is the constant of proportionality!
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Hope This Helped! Good Luck!
6.2n-3.7n=85+45
2.5n=130
N=130/2.5
N=52
The answer is B. Hope this helps!
So basically you just need to do the Pythagorean theorem to find the sides of the shaded rectangle, with c being the length of the side.
Small side:
2^2 + 6^2 = c^2
4 + 36 = c^2
40 = c^2
C is similar to 6.32456
Long side:
12^2 + 4^2 = c^2
144 + 16 = c^2
160=c^2
C is similar to 12.64911
And then you just multiply!
The width is 4x + 4
(4x)(2x) = 8x
(-3)(4) = 12
hope that helps
