<span>Simplifying
z + 18 = y
Reorder the terms:
18 + z = y
Solving
18 + z = y
Solving for variable 'z'.
Move all terms containing z to the left, all other terms to the right.
Add '-18' to each side of the equation.
18 + -18 + z = -18 + y
Combine like terms: 18 + -18 = 0
0 + z = -18 + y
z = -18 + y
Simplifying
z = -18 + y</span>
Answer: f-1(y) = (y-3)/2
Step-by-step explanation:
f(x) = 2x+3, written as a flow diagram:
2x+3
The Inverse Function goes the other way:
Inverse
So the inverse of: 2x+3 is: (y-3)/2
The inverse is usually shown by putting a little "-1" after the function name, like this:
f-1(y)
We say "f inverse of y"
So, the inverse of f(x) = 2x+3 is written:
f-1(y) = (y-3)/2
Answer:
Step-by-step explanation:
I hope I helped you^_^
Answer:
7 Candy bars
Step-by-step explanation: She can buy 7 candy bars, just subtract 3 from 12 and you get 9, then keep subtracting 1.50 from each and you end up getting 7 candy bars.
Lets turn E into x and F into y.
We already know that x is 0.8. And if y/x = 0.6, we have to figure that out.
y/x = 0.6
y/0.8 = 0.6
Multiply by 8 to get y = 0.48.
So we have to find P(xy)
So if we know that x = 0.8 and y = 0.48 then all we have to do is multiply 0.48 and 0.8.
0.48 * 0.8 = 0.384
P(E and F) is 0.384.
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