Answer:
Option C 
Step-by-step explanation:
Let
x ----> the cost of the concert ticket
we know that
The total cost to be no more than $4 Above $80
so

Solve for x

The total cost to be no more than $4 below $80
so

Solve for x


therefore
The inequality that represent this problem is

<u><em>Verify</em></u>
<em>First solution (positive case</em>)


Solve for x
----> is ok
<em>Second solution (negative case)</em>

Multiply by -1 both sides


Solve for x

---> is ok
Remember that
is equivalent to 
Because is a absolute value
That looks like a rectangular prism
Answer:
The marked price of the watch is $2,702.27.
Step-by-step explanation:
Since allowing 20% discount on the marked price of a watch, the value of the watch will be Rs. 2378, to determine, if the VAT of 10% is added, it's marked price, the following calculation must be performed:
1 - 0.2 = 0.8
0.8 x 1.1 = 2378
0.88 = 2378
0.88 = 2378
0.8 = X
0.8 x 2378 / 0.88 = X
1,902.4 / 0.88 = X
2,161.81 = X
0.8 = 2,161.81
1 = X
2,161.81 / 0.8 = X
2,702.27 = X
Therefore, the marked price of the watch is 2,702.27.
Answer:
206
Step-by-step explanation:
The formula for this problem would be -310 + 13(8) which = 206
Answer:
y =
x - 1
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
y = -
x - 3 is in this form
with slope m = - 
the slope of a perpendicular line is the negative reciprocal of m, hence
= 
(0 , - 1 ) is the y-intercept ⇒ c = - 1
y =
x - 1 ← equation of perpendicular line