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malfutka [58]
3 years ago
6

SAVINGS ACCOUNT How much interest will Hannah earn in 4 years if she deposits $630 in a savings account at 6.5% simple interest?

Mathematics
1 answer:
sergey [27]3 years ago
8 0

Answer:

$793.80

Step-by-step explanation:

You want to calculate the interest on $630 at 6.5% interest per year after 4 year(s).

The formula we'll use for this is the simple interest formula, or:

<em>I = P x r x t</em>

<em>Where: </em>

<em> </em>

<em>P is the principal amount, $630.00. </em>

<em>r is the interest rate, 6.5% per year, or in decimal form, 6.5/100=0.065. </em>

<em>t is the time involved, 4....year(s) time periods. </em>

<em>So, t is 4....year time periods. </em>

<em>To find the simple interest, we multiply 630 × 0.065 × 4 to get that: </em>

<em> </em>

<em>The interest is: $163.80 </em>

<em>Usually now, the interest is added onto the principal to figure some new amount after 4 year(s), </em>

<em>or 630.00 + 163.80 = 793.80. For example: </em>

<em> </em>

<em>If you borrowed the $630.00, you would now owe $793.80 </em>

<em>If you loaned someone $630.00, you would now be due $793.80 </em>

<em>If owned something, like a $630.00 bond, it would be worth $793.80 now.</em>

<em />

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Answer:

Step-by-step explanation:

((10²-8)+4)×3=288

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96×3=288

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The figure shows square KLMN. Which of the following conditions satisfy the criteria for squares?
BartSMP [9]

Answer:

First option: SquareKLMN with diagonals LN and KM.

Fifth option: Segment LMis parallel to segment KN.

Step-by-step explanation:

We know that a square is quadriteral whose sides are equal.

By definition, a square has the following properties:

1) Its four sides are congruent.

2) The diagonals are congruent.

3) The angles formed by the intersection of the diagonals measure 90 degrees.

4) The opposite sides are parallel.

5) Each internal angle measures 90 degrees.

Notice in the figure that:

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7 0
3 years ago
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Find the slope of the line (18,0)(10,-5)
Leya [2.2K]

Answer:

m=\frac{5}{8}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (18, 0)

Point (10, -5)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute [SF]:                    m=\frac{-5-0}{10-18}
  2. Subtract:                              m=\frac{-5}{-8}
  3. Simplify:                               m=\frac{5}{8}
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2 years ago
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A moose population is growing exponentially following the pattern in the table shown below. Assuming that the pattern continues,
Alika [10]

The population of the moose after 12 years is 7692

Step-by-step explanation:

The form of the exponential growth function is y=a(b)^{x} , where

  • a is the initial value
  • b is the growth factor

The table:

→  x  :  y

→  0  :  40

→  1   :  62

→  2  :  96

→  3  :  149

→  4  :  231

To find the value of a , b in the equation use the data in the table

∵ At x = 0 , y = 40

- Substitute them in the form of the equation above

∵ 40=a(b)^{0}

- Remember any number to the power of zero is 1 (except 0)

∴ 40 = a(1)

∴ a = 40

- Substitute the value of a in the equation

∴ y=40(b)^{x}

∵ At x = 1 , y = 62

- Substitute them in the form of the equation above

∵ 62=40(b)^{1}

∴ 62 = 40 b

- Divide both sides by 40

∴ 1.55 ≅ b

∴ The growth factor is about 1.55

- Substitute its value in the equation

∴ The equation of the population is y=40(1.55)^{x}

To find the population of moose after 12 years substitute x by 12 in the equation

∵ y=40(1.55)^{12}

∴ y ≅ 7692

The population of the moose after 12 years is 7692

Learn more:

You can learn more about the logarithmic functions in brainly.com/question/11921476

#LearnwithBrainly

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