The $315 cost of the couch after tax, gives the cost before tax, <em>C</em>, as the following equation;

<h3>How can the cost before tax be expressed?</h3>
The cost of the couch with tax = $315
Let, <em>t</em>, represent the tax rate, and let <em>C</em>, represent the cost before tax, we have;
315 = C + C × t
Which gives;
- The cost of the couch before tax, <em>C </em>= 315/(1 + t)
Mathematically, we have the following equation;

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Answer:
The numbers of tickets in advanced sold was 260 and the numbers of tickets at the door sold was 65
Step-by-step explanation:
Let
x ---> the numbers of tickets in advanced sold
y ---> the numbers of tickets at the door sold
we know that
325 tickets are sold
so
----> equation A
$1430 is collected
so
----> equation B
Solve the system of equations by graphing
Remember that the solution is the intersection point both graphs
using a graphing tool
The solution is the point (260,65)
see the attached figure
therefore
The numbers of tickets in advanced sold was 260 and the numbers of tickets at the door sold was 65
Answer:
To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.
hope this helps in some way!
You might need to use the distance formula
for the distance betwen (x1,y1) and (x2,y2) is

so find disance between (-3,1) and (-1,3)
and (-1,3) and (3,1)
so
if we did input them
we would get

which is the peirmiter
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