Answer:
B
Step-by-step explanation:
Answer:
x<4
Move all terms not containing x to the right side of the inequality.
Answer:
$25.5
Step-by-step explanation:
To find 85% of $30, we can simply multiply the usual price, $30, by the decimal form of the percentage.
The decimal form of 85% is .85.
Now, multiply.
30*.85=25.5
The sale price of the backpack is $25.5.
Hope this helps!
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?)
