Answer:
yt
Step-by-step explanation:
to inverse a equation make all y's x and andy x's y
Thus the inverse is
x=4y-8
Evaluated to
4y=x+8
y=
Convert the exponential equation to a logarithmic equation using the logarithm base
(
7
)
7
of the right side
(
1
)
1
equals the exponent
(
0
)
0
.
log
7
(
1
)
=
0
800+16x=720+21x
80+16x=21x
80=5x
X=16
So 16 hours :)
