Answer:
x=18.2
y=21.7
(18,21)
Step-by-step explanation:
−20x + 15y = −40
20x − 8y = 192
7y=152
y=21.7
y=21.7 , -20x+325.5=-40
-20x=-365.5
x=18.2
Answer:
brainiest give promise
Step-by-step explanation:
27.9 pounds
24.37 + 3.53 = 27.9
Answer:
Firstly
f(x)=3x-2=y then
Interchanging x and y we get
x=3y-2
x+2=3y
y=(x+2)/3
f-1(x)=(x+2)/3
f-1(13)=(13+2)/3
f-1(13)=5
Answer:
Step-by-step explanation:
Use the x-swap-y method to find the inverse:
I got 5200 I'm not really sure but u can check