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Archy [21]
2 years ago
6

Sally invests $5000 in an account earning 8% interest, compounded continuously. After how many years will she double her investm

ent? [Use the formla A = Pert and round answer to the nearest tenth.
Mathematics
2 answers:
Basile [38]2 years ago
8 0

Answer:

8.7 years

Step-by-step explanation:

8.7 years is correct. Plug in 10000 for A, divide both sides by 500, then take the natural logarithm of both sides to get ln(2) = .08t. Divide by .08 to get the answer.

juin [17]2 years ago
6 0
Double is double, so you can solve
.. 2 = 1*e^(.08t)
and get the correct value of t.

Taking logs,
.. ln(2) = .08t
.. ln(2)/.08 = t ≈ 8.7 . . . . years
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Someone please help me with math linear equations 3x + 2y = 12
vodka [1.7K]
3x + 2y = 12
subtract 3x from both sides
2y = -3x + 12
divide all terms by 2 so that you can have only the y on the left side
y = -3/2x + 6
And that is your answer!

Hope this helped!! :)

6 0
3 years ago
Pls some1 help I’ll help u PLSSSS HELP
kakasveta [241]

1/3 is bigger than 30%

4 0
3 years ago
512/2 simplified fraction form
Dvinal [7]

Step-by-step explanation:

\frac{512}{2}  \\  \\  \frac{201}{1}

5 0
2 years ago
from 1970 to 1980 the consumer price index increased from 38.8 to 82.4. If a container of onion dip cost $0.48 in 1970 and the p
Vikki [24]
We need to find the percent increase from 38.8 to 82.4, so

x * 38.8 = 82.4
x = 82.4/38.8
x = 2.1237

Multiply by 100 to convert to percentage (move decimal 2 places to the right)

2.1237 = 212.37%

Now we can apply this percentage increase to the onion dip...

0.48 x 212.37% =
0.48 x 2.1237 = 1.019 
 
Round to the nearest cent $1.02 is the amount of increase.  Now add it to the original price to get today's price...

$1.02 + .48 = $1.50
 
5 0
3 years ago
Read 2 more answers
Brooklyn wants to know how many families in her neighborhood plan to attend the parade. She puts all 120 of the neighborhood add
AfilCa [17]

Answer:

The answer is: B) Yes, this is a valid inference because it took a random sample from the neighborhood.

And apart from the random sample, 40% of families agreed with her to attend the parade at least.

Step-by-step explanation:

7 0
3 years ago
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