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anastassius [24]
2 years ago
6

The expression 0.09x+(x-30) models the final price of a bicycle is its an instant rebate in a state that charges a sales tax. Th

e tax is on the original price. Which expression represents the amount of tax that is paid on the bicycle?
A)0.09x
B)1.09x
C)x-30
D)0.09x-30
Mathematics
2 answers:
svlad2 [7]2 years ago
6 0

Answer:

<em>A)0.09x</em>

Step-by-step explanation:

The original price of the bicycle is x.

The discounted price of the bicycle is x - 30. It is a $30 discount.

The tax goes on the original price. 0.09x is the 9% tax applied to the original price x.

Answer: 0.09x

raketka [301]2 years ago
6 0

Answer:


A)0.09x


Step-by-step explanation:


The original price of the bicycle is x.


The discounted price of the bicycle is x - 30. It is a $30 discount.


The tax goes on the original price. 0.09x is the 9% tax applied to the original price x.


Answer: 0.09x

Hope this helps<3



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Step-by-step explanation:

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Using the values from the table attached below, we can substitute and find the values of a and b

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\begin{aligned}a &=\frac{\left(N * \sum x y\right)-\left(\sum x * \Sigma y\right)}{\left(N * \sum x^{2}\right)-\left(\sum x * \sum x\right)} \\&=\frac{(9 * 324.9)-(36 * 83.9)}{(9 * 204)-(36 * 36)} \\&=-0.18\end{aligned}

Similarly, substituting the values of b, we get,

\begin{aligned}b &=\frac{\left(\sum x^{2} * \Sigma y\right)-\left(\sum x * \sum x y\right)}{\left(N * \sum x^{2}\right)-\left(\sum x * \sum x\right)} \\&=\frac{(204 * 83.9)-(36 * 315)}{(9 * 204)-(36 * 36)} \\&=10.06\end{aligned}

Thus, substituting the values of a and b in the formula, we get,

\begin{aligned}y &=a x+b \\&=-0.18 x+10.06\end{aligned}

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3 years ago
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