First make x the subject of the relation:-
f(x) = 2x - 4
2x = f(x) + 4
x = (f(x) + 4) / 2
Now replace x by the inverse f-1(x) and f(x) by x :-
f-1(x) = (x + 4) / 2
Answer:
P = 24
Step-by-step explanation:
Since all the sides are the same length, the shape is a square.
Multiply all sides by 6.
6 cm x 4 sides = 24
2x + 3 + x = 39
3x + 3 = 39
3x = 36
x = 12
One tank holds 12 gallons
The other tank holds 27 gallons
Answer:
x=3/4 ; y=5/3
Step-by-step explanation:
3x + 5x = 6
8x=6
x=6/8
x=3/4
4(3/4) + 3y = 8
3+3y=8
3y=5
y=5/3