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MatroZZZ [7]
3 years ago
13

Maria invests $6,154 in a savings account with a fixed annual interest rate of 8% compounded continuously. What will the account

balance be after 10 years?
Mathematics
1 answer:
VladimirAG [237]3 years ago
3 0

Answer:

$13,695.98

Step-by-step explanation:

Continuously compounded interest formula:

A = Pe^{rt}

where

A = future value

P = principal (present value of amount invested)

e = mathematical constant, the base of natural logarithms

r = interest rate

t = time in years

We have: P = 6154; r = 8% = 0.08; t = 10

A = 6154e^{0.08 \times 10}

A = 6154e^{0.8}

A = 6154 \times 2.2255

A = 13695.98

Answer: $13,695.98

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Maitri and Aabhas do a work in 12 hours.
tamaranim1 [39]

Answer:

See below ~

Step-by-step explanation:

<u>Given</u>

  • Maitri and Aabhas do a work in 12 hours
  • Aabhas and Kavya do the work in 15 hours
  • Kavya and Maitri do the work in 20 hours

<u>Solving</u>

  • Take Maitri, Aabhas, and Kavya to be x, y, z respectively
  • <u>x + y = 12</u> (1)
  • <u>y + z = 15</u> (2)
  • <u>x + z = 20</u> (3)

<u>Take Equation 1 and rewrite it so that it is equal to x.</u>

  • x = 12 - y

<u>Take Equation 2 and rewrite it so that it is equal to z.</u>

  • z = 15 - y

<u>Now, substitute these values in Equation 3.</u>

  • x + z = 20
  • 12 - y + 15 - y = 20
  • -2y + 27 = 20
  • 2y = 7
  • y = 7/2 = <u>3.5 hours [Aabhas]</u>

<u></u>

<u>Substitute the value of y in Equation 1.</u>

  • x + 3.5 = 12
  • x = <u>8.5 hours [Maitri]</u>

<u>Substitute the value of y in Equation 2.</u>

  • 3.5 + z = 15
  • z = <u>11.5 hours [Kavya]</u>

<u></u>

<u>Add the values of x, y, and z together.</u>

  • x + y + z
  • 8.5 + 3.5 + 11.5
  • 12 + 11.5
  • <u>23.5 hours [together]</u>

8 0
2 years ago
A plant measures 0.5 in. at the end of Week 1 and 14 in. at the end of Week 5. find the rate of change
CaHeK987 [17]
The change in growth was 14 - 0.5 = 13.5 inches.
Since it is over the course of 5 weeks, divide 13.5 by 5.
13.5/5 = 2.7
2.7 = 270%

The rate of change was 270%. Hope this helps!
8 0
3 years ago
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Please help 10 points
Wittaler [7]

Answer:

A: answer is 0 because anything to the power of 0 is 1

B: 0 or 1 because 1 to the power of 1 is 1 and 1 to the power of 0 is also 1

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