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Marta_Voda [28]
2 years ago
6

A population of flies grows according to the function p(x)=6(3)^x, where x is measured in weeks. A local spider has set up shop

and consumes flies according to the function s(x)=4x+1. What is the population of the flies after two weeks with the introduced spider?
Mathematics
1 answer:
Doss [256]2 years ago
7 0
The final population of the flies is equal to the growth rate minus the number of flies consumed by the spiders. That is,
                          final population = 6(3^x) - (4x + 1)
Substituting 2 to the x of the equation above,
                         final population = 6(3²) - (4(2) + 1) = 45
Thus, the final population of the flies would be 45. 
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Answer:

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Step-by-step explanation:

We have been given that a radio-controlled helicopter sells for $20, but needs a lithium battery that costs 25% of that price.

We can find the price of battery by finding 25% of 20.

\text{The cost of lithium battery}=\frac{25}{100}\times 20

\text{The cost of lithium battery}=\frac{25}{5}

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Therefore, the cost of lithium battery is $5.

Now let us find the sales tax on the cost of helicopter and lithium battery.

\text{Total sales tax}=\frac{6}{100}\times (20+5)

\text{Total sales tax}=0.06\times (25)

\text{Total sales tax}=1.5

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We can find the total cost of helicopter by adding the cost of helicopter, cost of lithium battery and total amount of sales tax.

\text{The total cost of helicopter}=20+5+1.5

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Answer:

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Step-by-step explanation:

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