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Vlad1618 [11]
1 year ago
9

1. You decide to deposit $20,000 into an account that pays 6.5% interest compouded monthly. How much money will you have in the

account after 40 years? 2. You put $20,000 into an account that pays 7.25% compounded continuously. How much money will you have in there after 10 years?
Mathematics
1 answer:
sattari [20]1 year ago
6 0

use the formula for interest compounded in n periods per year

A=P\cdot(1+\frac{r}{n})^{nt}

where n should 12 since it is compounded monthly

\begin{gathered} A=20,000\cdot(1+\frac{0.065}{12})^{12\cdot40} \\ A=267,392.05 \end{gathered}

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I Need help plz help me i Sony understand
nydimaria [60]
A. 2, 200, 2000  

This is multiplying the number by 10 each time. In other words, just adding an extra zero to the end of it. 

b. 340, 0.034 

This one is moving the decimal place forward two places. 10^-2, so removing two zeros from the end of it until eventually you reach decimals and have to move the decimal forward twice, which is essentially what you're doing here.

c. 85700, 857, 0.857

In this one, you remove one zero from the end. You move the decimal forward once when you reach the decimals. This would be 10^-1

d. 444000, 4440000, 44400000

In this one, you multiply each one by 10. Add on a zero to each one.

e. 0.095, 9500000, 950000000

You multiply this one by 10^2, so the number increases.
4 0
3 years ago
Round to the nearest hundredth 5/8
Solnce55 [7]
Eighths and their multiples are common fractions which I recommend memorizing, but to actually solve this, you use the literal meaning of a fraction and divide 5 by 8. See the long-division below (it was surprisingly difficult to type, so I hope it helps!).

To round 0.625 to the nearest hundredth, we go to the second decimal place, which is 5, so we round up to 0.63.

3 0
3 years ago
A girl is 18 years old and her brother is a third of her age. When the girl is 36 what would be the age of the brother?
ale4655 [162]
First we need to calculate how many years her brother has when she is 18. As text says he is:
18/3 = 6 years old

Now when she gains another 18 years (36-18=18) he will also gain those 18 years

When she is 36 he will have 6+18=24 years old

Answer is 24.
8 0
4 years ago
Read 2 more answers
a pet store donated 50 pounds of food for adult dogs , puppies and cats to an animal shelter. 19 and 3/4 pounds was adult dog fo
ddd [48]

Answer: 10 3/8

Step-by-step explanation:

= 50 - 19 3/4 - 19 7/8

= 10 3/8

5 0
2 years ago
Fred can drink 8 3/4 sodas in 5 minutes at thus rate how many sodas can fred drink in 2mintues
Llana [10]
He can drink 2/5 of the 8  3/4 sodas.

\frac{2}{5}  x 8  \frac{3}{4} =  \frac{2}{5} x  \frac{35}{4}

The answer is 7/2 or 3 1/2 sodas.

Of course, Fred would be better off is he drank water instead of soda.  :-)


5 0
3 years ago
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