A Coffee table was $129.99 and on sale for 20% off. The sales tax is 8.5%. How much do we save?
Answers
Answer:
Step-by-step explanation:
Discount = 20% of 129.99
= $26
Price after discount = 129.99 - 26 = $103.99
Tax = 8.5% of 103.99
= $8.84
Selling price including tax = 103.99 + 8.84
= $112.83
Amount saved = 129.99 - 112.83
=$ 17.16
Answer:
We save 16.18 dollars.
Step-by-step explanation:
First, I did calculations on how much money there would be with the discount.
129.99 times 0.2 equals 25.1 [So with the discount, I got 25.1 dollars off.]
129.99 - 25.1 = 104.89 [so with the discount, I just have to pay 104,89, now,]
Now, I did the calculations WITH the SALES TAX.
104.89 times 0.085 equals 8.92 [ so tax is actually 8.92 dollars.]
104.89 + 8.92= 113.81 [ SO, with TAX, the table costs 113.81.]
Now I see how much money I have saved.
104.89 - 113.81 = 16.18
If you still don't get how I got my answer, just ask more questions to me! =)
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Answers
The answer is quadratic.
A quadratic equation takes this form:
ax^2+ bx + c
The "a,""b,"and "c" represent numerical coefficients.
This is how your equation looks:
3x + x^2 + 4
Now it is standard that we organize the polynomial in descending order so it will look like this:
x^ 2 + 3x + 4
(commutative property of addition says that the arrangement will not affect the result)
It matches the quadratic polynomial form.
* You might be thinking, x to the second power has no number next to it though, well actually it does. The numerical coefficient of x to the power of two in this case is actually 1. It's just that in math, it is not necessary to put the one anymore. It is already assumed.