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3 years ago

7

The amount of tax for each camera is $5.25 and the tax rate is 6%. Explain how the equation: (Original Cost)(Percent) = Tax Amou

nt is adjusted to solve for the original cost.

2 answers:

Mekhanik [1.2K]3 years ago

8 0

Answer:

The equation is adjusted by dividing the tax amount by the percent to find the original cost. Dividing by the percent is the inverse operation of multiplying by percent.

Step-by-step explanation:

Degger [83]3 years ago

3 0

x(1.06)=5.25

The reason it is 1.06 is because it is the original cost plus tax. You can divide each side by 1.06 to get x roughly equals 4.95.

So $4.95 is roughly what the camera costs rounded to the nearest cent.

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ANSWER

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EXPLANATION

Part a)

Eliminating the parameter:

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From the first equation we make t the subject to get;

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We differentiate to get;

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The slope of the tangent is 2.

The equation of the tangent through

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Without eliminating the parameter,

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The equation of the tangent through

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