Answer:
x=-2, y=-9/2. (-2, -9/2).
Step-by-step explanation:
x=2y+7
3x-2y=3
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3(2y+7)-2y=3
6y+21-2y=3
6y-2y+21=3
4y+21=3
4y=3-21
4y=-18
y=-18/4
simplify
y=-9/2
x=2(-9/2)+7
x=-9+7
x=-2
(f-g)(x) is a shorthand way of saying that you need to get the difference of the two functions: f(x) and g(x). so essentially,
(f-g)(x) = f(x) - g(x)
= 5x+2 - (-3x+4)
= 8x-2
(f/g)(-2) = f(-2)/g(-2)
= -4/5 or -0.8
Hope this helps.
If A is the buying value & B the selling value, then the increase =
Increase = (B-A)/A = (1.15 - 0.87)/0.87 = 0.3218 or 31.18%
Answer:
31,37 and 41
Step-by-step explanation:
