Answer:
20
Step-by-step explanation:
the inverse of
y=1/2x + 10
is
x=1/2y+10
from here you just solve for y
x-10 = 1/2y
2(x-10) = y
2x-20 = y
2(x-5) = 9
2x - 10 = 9
2x = 19
x = 9.5
Answer:
x²
Step-by-step explanation:
Let "d" represent the divisor (what goes in the blank). Then you have ...
... (x²y)/d = y
Multiplying by d gives ...
... x²y = yd
And dividing by y gives the desired value:
... x² = d
The divisor is x².
<span> 2000=400+1/6x
subtract 400 from each side..... 400-400 cancels out....2000-400=1600
1600=1/6x
multiply by recipricol, 1600*6/1= 9600........1/6*6/1 cancels out
9600=x
You must sell $9600 worth of stuff to earn $2000.
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