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Alla [95]
3 years ago
10

Bicycle rentals cost $5.00 per hour for an adult and $2.50 per hour for a child.

Mathematics
1 answer:
monitta3 years ago
3 0

Answer:

B

Step-by-step explanation:

Have a good day!

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Type the correct answer in the box. Round your answer to the hundredth.
sesenic [268]

Answer:

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Step-by-step explanation:

Use the equation for continuously compounded interest, which uses the exponential base "e":

A=P e^{k*t}

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A is the accrued value (value accumulated after interest is compounded), in our case it is not a given value but we know that it triples the original deposit (principal) so we write it as: 3 P (three times the principal)

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and t is the time in the savings account to triple its value (what we need to find)

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3P = P e^{0.05 * t}

To solve for "t" we divide both sides of the equation by P (notice it cancels P everywhere), and then to solve for the exponent "t" we use the natural logarithm function:

\frac{3P}{P} = \frac{P}{P}  e^{0.05 * t}

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ln(3) = 0.05 * t

t = \frac{ln(3)}{0.05} = 21.972245... years

6 0
2 years ago
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