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mr Goodwill [35]
3 years ago
11

Assessment items Jackie deposited $315 into a bank account that earned 1.5% simple interest each year. If no money was deposited

into or withdrawn from the account, how much money was in the account after ​3​ years?
Mathematics
1 answer:
Arturiano [62]3 years ago
4 0
The interest would be $14.17 so the total in the account is $329.17.

you find this by using the formula:
I = P*R*T
I =300*.015*3
I = 14.17
You might be interested in
How is the series 5+11+17…+251 represented in summation notation?
NISA [10]

Answer:

\displaystyle \large{\sum_{n=1}^{42}(6n-1)

Step-by-step explanation:

Given:

  • Series 5+11+17+...+251

To find:

  • Summation notation of the given series

Summation Notation:

\displaystyle \large{\sum_{k=1}^n a_k}

Where n is the number of terms and \displaystyle \large{a_k} is general term.

First, determine what kind of series it is, there are two main series that everyone should know:

  • Arithmetic Series

A series that has common difference.

  • Geometric Series

A series that has common ratio.

If you notice and keep subtracting the next term with previous term:

  • 11-5 = 6
  • 17-11 = 6

Two common difference, we can in fact say that the series is arithmetic one. Since we know the type of series, we have to find the number of terms.

Now that brings us to arithmetic sequence, we know that first term is 5 and last term is 251, we’ll be finding both general term and number of term using arithmetic sequence:

<u>Arithmetic Sequence</u>

\displaystyle \large{a_n=a_1+(n-1)d}

Where \displaystyle \large{a_n} is the nth term, \displaystyle \large{a_1} is the first term and \displaystyle \large{d} is the common difference:

So for our general term:

\displaystyle \large{a_n=5+(n-1)6}\\\displaystyle \large{a_n=5+6n-6}\\\displaystyle \large{a_n=6n-1}

And for number of terms, substitute \displaystyle \large{a_n} = 251 and solve for n:

\displaystyle \large{251=6n-1}\\\displaystyle \large{252=6n}\\\displaystyle \large{n=42}

Now we can convert the series to summation notation as given the formula above, substitute as we get:

\displaystyle \large{\sum_{n=1}^{42}(6n-1)

5 0
2 years ago
Answer choices <br> 216 cm<br> 247 cm<br> 297 cm<br> 337 cm
Natalija [7]
297 cm is the total surface area of the square pyramid
7 0
3 years ago
joshua is 6 years younger than kerryn. Kerryn age can be represented by x.write an expression representing joshua's age.
never [62]

Answer: X - 6

If you were to write an equation you can use Y to represent Joshua's age, X - 6 = Y

3 0
3 years ago
Evaluate the expression 3x² + 2x - 4 for x =-2.
marin [14]

Answer:

4

Step-by-step explanation:

3x² + 2x - 4

3(-2)² + 2(-2) - 4

3(4) - 4 - 4

12 - 4 - 4

12 - 8

= 4

4 0
3 years ago
Find the distance between the pair of points: (4,0) and (2,-1)
Marysya12 [62]
The distance is 2.23606 (2.24 rounded)
6 0
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