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sertanlavr [38]
2 years ago
6

The prevalence of cigarette smoking in the united states is in decline if the percentage of smokers in 2014 was 16.7% and the pe

rcentage is decreasing by 5.6% each year, write the explicit formula for the sequence whose terms represent the percentage of americans who smoke n years after 2014.
1. an=-16.7n-5.6
2 an=16.7n-5.6
3. an=-5.6n+16.7
4 an=5.6n+16.7
Mathematics
1 answer:
astraxan [27]2 years ago
7 0

The linear formula for the sequence whose terms represent the percentage of americans who smoke n years after 2014 is:

a(n) = -5.6n + 16.7

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and for a time-dependent function, can also be interpreted as the initial value.

In this problem:

  • The percentage of smokers in 2014 was 16.7%, hence the initial value is b = 16.7
  • The percentage is decreasing by 5.6% each year, hence the slope is m = -5.6.

Then, the <em>equation </em>is:

y = mx + b

a(n) = -5.6n + 16.7

You can learn more about linear functions at brainly.com/question/24808124

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Answer:

The total cost of a bicycle after the tax = $900.8

Step-by-step explanation:

Given

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The total cost of the bicycle with a sales tax include

The tax amount can be calculated by multiplying Sales tax i.e. 0.075 with the cost of bicycle before tax i.e. 837.95.

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Tax amount = 7.5% × 837.95

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Therefore,

The total cost of a bicycle after the tax = $62.85 + $837.95

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