5x + 9y = 0
to find the x int, sub in 0 for y and solve for x
5x + 9(0) = 0
5x = 0
x = 0
to find the y int, sub in 0 for x and solve for y
5(0) + 9y = 0
9y = 0
y = 0
the reason u cannot use just the intercepts is because the line goes through the origin (0,0)....The intercepts coincide giving u only 1 point...and that is not enough to graph a line
Answer:
x=3
Step-by-step explanation:
180-120=60
60+15x+5+22x+4=180
69+37x=180
37x=111
x=3
Answer:
Step-by-step explanation:
1680 mile road trip....they completed 3/8 of it...
so we need to figure 3/8 of 1680
" of " in math language means multiply
3/8 * 1680 = 5040/8 = 630 miles <===
Per means divide. So..
Step 1. Find ur equation. 63\3
Step 2. Solve ur equation. 63\3 = 21
I think thats right.
Answer:
Refer to the explanation.
Step-by-step explanation:
Let's take each one at a time.
1.
To solve for the complement, we simply subtract our markup rate by 100%.
100% - 30% = 70%
Now to solve for the selling price, we use the formula
![SellingPrice=\dfrac{Cost}{ComplementOfMarkupRate}](https://tex.z-dn.net/?f=SellingPrice%3D%5Cdfrac%7BCost%7D%7BComplementOfMarkupRate%7D)
![SellingPrice=\dfrac{86.74}{0.70}](https://tex.z-dn.net/?f=SellingPrice%3D%5Cdfrac%7B86.74%7D%7B0.70%7D)
Selling Price = $123.91
2.
We do the same process with the first number.
100% - 40% = 60%
![SellingPrice=\dfrac{Cost}{ComplementOfMarkupRate}](https://tex.z-dn.net/?f=SellingPrice%3D%5Cdfrac%7BCost%7D%7BComplementOfMarkupRate%7D)
![SellingPrice=\dfrac{220.00}{0.60}](https://tex.z-dn.net/?f=SellingPrice%3D%5Cdfrac%7B220.00%7D%7B0.60%7D)
SellingPrice = $366.67
3.
The same as the first two.
100% - 20% = 80%
![SellingPrice=\dfrac{Cost}{ComplementOfMarkupRate}](https://tex.z-dn.net/?f=SellingPrice%3D%5Cdfrac%7BCost%7D%7BComplementOfMarkupRate%7D)
![SellingPrice=\dfrac{89.50}{0.80}](https://tex.z-dn.net/?f=SellingPrice%3D%5Cdfrac%7B89.50%7D%7B0.80%7D)
SellingPrice = $111.88
4.
Now to solve for the markup rate, we use the formula:
![MarkupRate=\dfrac{Markup}{SelingPrice}](https://tex.z-dn.net/?f=MarkupRate%3D%5Cdfrac%7BMarkup%7D%7BSelingPrice%7D)
In this case we first need to find the markup. The markup is the difference between the selling price and the cost.
Selling Price = $235.28
Cost = $199.99
Markup = $235.28 - $199.99
Markup = $35.29
Now the we know our markup, we can then solve for the markup rate using the formula.
![MarkupRate=\dfrac{Markup}{SelingPrice}](https://tex.z-dn.net/?f=MarkupRate%3D%5Cdfrac%7BMarkup%7D%7BSelingPrice%7D)
![MarkupRate=\dfrac{35.29}{235.28}](https://tex.z-dn.net/?f=MarkupRate%3D%5Cdfrac%7B35.29%7D%7B235.28%7D)
MarkupRate = 0.1499 x 100 = 14.99% or 15%
5.
Now for the last one, we need to find for the cost. Let's use the selling price formula to find for the cost.
![SellingPrice=\dfrac{Cost}{ComplementOfMarkupRate}](https://tex.z-dn.net/?f=SellingPrice%3D%5Cdfrac%7BCost%7D%7BComplementOfMarkupRate%7D)
Selling Price = $30.77
Complement = 65% or 0.65
This will then give us.
![30.77=\dfrac{Cost}{0.65}](https://tex.z-dn.net/?f=30.77%3D%5Cdfrac%7BCost%7D%7B0.65%7D)
We multiple both sides of the equation by 0.65 to leave our cost alone.
30.77 x 0.65 = Cost
Cost = $20