Answer:
$54.50 would be your answer
Step-by-step explanation:
$80 as a decimal is 0.80
This means that 37.5 x 0.80 which is 30 will be taken off, so the printer is $30 off.
$80 - 30 off, so the pirinter sells for $50
sales tax is 9% on the price of $50, so multiply 50 by 1.09.
50 x 1.09 = 54.5
Therefore the final price is $54.50
Answer:
This system of equations has <em>no solution</em>. It is inconsistent.
Step-by-step explanation:
The last equation tells you z = -1.
Substituting this value for z in the other two equations allows them to be written as ...
-3x -y = 7
-3x -y = 3
There are no values of x and y that can make both these equations true.
The correct answer is D.
In order to solve for a function's inverse, you must start by switching the x and f(x) values. Then you solve for the new f(x). Once you have done that, you'll be left with the new function, which is the inverse of the original. See the work below for how this one will be solved.
f(x) = 
----> Switch the x and f(x)
x = 
----> Now subtract the 5 from both sides.
x - 5 = 
---> Now square both sides.
= f(x) - 1 ----> Now add 1 to both sides.
+ 1 = f(x)
And now that you have something equaling f(x), you can change the order and match it up to answer D.
f(x) = + 1
