Make f(x) = y
y = (15x + 50)/(x + 5)
Swap the x and y and make y the subject again
x = (15y + 50)/(y + 5)
x(y + 5) = 15y + 50
xy + 5x = 15y + 50
xy - 15y = 50 - 5x
y(x - 15) = 50 - 5x
y = (50 - 5x)/(x - 15)
So inverse function f^-1(x) = (50 - 5x)/(x - 15)
Answer:
false the answer is false
Step-by-step explanation:
Answer:
The discount is 35%.
Step-by-step explanation:
94 - 61.10 = the amount that she got discounted for.
Which equals $32.90. She got discounted $32.90 dollars. To find out the percent of cash she got discounted for you would do:
$32.90 divided by $94.00
Which equals .35
Move the decimal over 2 places to the right, and you then have your answer, which is 35%.
She got discounted 35%.
-4 2/5 / -5
-4 2/5 = -22/5
-5 = -5/1
-22/5 / -5/1
Flip -5/1 to multiply
-22/5 x 1/-5
Numerator x numerator / denominator x denominator
-22 x 1 = -22
5 x -5 = -25
-22/-25 = 22/25
The answer is 22/25.
Hey I'm probably too late but your answer would be 26-7i
Hope this helps :)
