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klio [65]
3 years ago
7

Jed deposited $400 into a bank that offers 3.9% interest rate, compounded daily. In how many years will his balance be $800?

Mathematics
2 answers:
Klio2033 [76]3 years ago
8 0
17.7 years----------->Apex correct answer

Alex17521 [72]3 years ago
4 0

Answer:

18 years ( approx )

Step-by-step explanation:

Since, if an amount is compounded daily,

Then, the final amount after t years is,

A=P(1+\frac{r}{365})^{365t}

Where, P is the principal amount

r is the annual rate ( in decimals ),

t is the number of years,

Given,

A = $ 800,

r = 3.9% = 0.039,

P = $ 400,

By substituting the values,

800=400(1+\frac{0.039}{365})^{365t}

\implies t = 17.774\approx 18\text{ years}

Hence, his balance will be $800 after approximately 18 years.

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Which value of x would make ?<br><br> 1<br> 6<br> 8<br> 10
Liono4ka [1.6K]

Answer:

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we know that

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Remember that

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3 years ago
One scientific team determened that the avrage thickness of a chickens egg shell is 0.311 millimeters
rosijanka [135]

Answer:

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This second decimal place for this number is 1 and this number is \leq 5 so then if we round to the nesrest tenth we will get:

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Step-by-step explanation:

We use the following info in order to complete the qeustion:

Round the thickness of the shell to the nearest tenth.

0.3

0.5

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9

As we can see the average for the thickness of a chickens egg shell is 0.311 mm and if we want to round this number to the nearest tenth we just need to see the second decimal place and round to one decimal place.

This second decimal place for this number is 1 and this number is \leq 5 so then if we round to the nesrest tenth we will get:

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Answer:

Let us consider the expression:

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Now, the quotient of power rules says that the numbers that have same base can be find by subtracting if powers are with same sign

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We will solve equation (1) by this quotient of power rule.

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