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Fed [463]
1 year ago
6

Joseph received a $20 gift card for downloading music. Each downloaded song costs $1.29. Explain how to write and solve an inequ

ality that can be used to determine the number of songs that he can purchase. Interpret the solution.
Mathematics
1 answer:
OleMash [197]1 year ago
5 0
X= the amount of songs
(x*1.29)/20
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<h3><u>Answer:</u></h3>

The function N(t) is given as:

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<h3><u>Step-by-step explanation:</u></h3>

Jenny studied the characteristics of two species of bacteria.

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A(t) = 5+(0.25t)^3

The number of bacteria of species B, B(t), after t hours is represented by the function:

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N(t) denotes the difference in the number of bacteria; hence N(t) is given by after t hours as:

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N(t)= 5+(0.25t)^3-(2 + 8(1.06)^t)

which on simplifying gives:

N(t)=5+(0.25t)^3-2-8(1.06)^t\\\\N(t)=5-2+(0.25t)^3-8(1.06)^t\\\\N(t)=3+(0.25t)^3-8(1.06)^t

Hence,

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1 year ago
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Answer:

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1 mg

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∴ Rate of infusion is 57 mL/hr

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