Answer:
Step-by-step explanation:
12.5z - 6.4 =-8z + 3(1.5z - 0.5)
12.5z - 6.4 = - 8z + 4.5z - 1.5
12.5z - 6.4 = - 3.5z - 1.5
Bringing like terms on one side
12.5z + 3.5z = - 1.5 + 6.4
16z = 4.9
z = 4.9/16
Answer:
$7,596.43
Step-by-step explanation:
The cost of the college tuition is increasing 5% compounded annually for 5 years.
∴ A = P(1 + r%)ⁿ
where A = tuition fee after 5 years.
P = current tuition
r = rate of increase
n = period
A = $5,952(1 + 5%)⁵
= $5,952(1 + 0.05)⁵
= $5,952 × 1.05⁵
= $7,596.43
=
Answer:
Step-by-step explanation:
81
=
3
4
and
27
=
3
3
, so this equation can also be written as
3
4
x
=
3
3
(
x
+
2
)
=
3
3
x
+
6
.
Since the bases are now the same, we can equate exponents to get
4
x
=
3
x
+
6
so that
x
=
6
(technically this equating of exponents requires the fact that exponential functions (with base not equal to 1) are one-to-one functions).
(do u understand?)
Answer:
true
Step-by-step explanation:
the line is going down. if it was positive then it would be going from left all to right going up.
