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Lapatulllka [165]
3 years ago
7

Suppose Marlie only paid interest during her 4 years in school and the six-month grace period. What will she pay now in interest

over the term of the loan
Mathematics
1 answer:
dmitriy555 [2]3 years ago
7 0

Answer: interest = $ 3,629.34

Step-by-step explanation:

Complete question

(Marlie will be starting college next year, federal unsubsidized student loan in the amount of $18,800 at 4.29%. She knows that during this non-payment time, interest will accrue at 4.29%. Suppose Marlie only paid the interest during her four years in school and the six-month grace period. What will she now pay in interest over the term of the loan.)

This question relates to interest over a single period of time and since it's not compounded, we use formula for simple interest to calculate the interest accrued.

Data;

P = $18,800

R = 4.29% = 0.0429

T = 4.5 years

S.I = ?

S.I = PRT

S.I = 18,800 * 0.0429 * 4.5

S.I = $3,629.34

Therefore she'll need to pay $3,629.34 as interest accrued.

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Morgarella [4.7K]

Answer:

E) (-4, -3)

Step-by-step explanation:

To use elimination, you need to have one variable in both equations that have the same coefficient. (The coefficient is the number attached to the variable). Both equations have "7y".

The way elimination works is by eliminating one of the variables first. Decide how (-7y) and (-7y) can cancel out and become 0. You can either add or subtract.

(-7y) - (-7y)        Try subtracting

= (-7y) + 7y

= 0

Based on this, we should subtract the whole equations.

Set up the equations like normal subtraction. Then, subtract each of the terms that have the same variable.

.   4x - 7y = 5

<u>-   9x - 7y = -15</u>       Do 4x - 9x = -5x.    -7y - (-7y) = 0.      5 - (-15) = 20.

.    -5x - 0 = 20       "y" cancelled out

.          -5x = 20          Isolate 'x'

.      -5x/-5 = 20/-5       Divide both sides by -5

.              x = -4          Solved x-coordinate

Substitute 'x' for -4 in any of the equations. Then simplify and isolate "y" to solve for the y-coordinate.

4x - 7y = 5

4(-4) - 7y = 5         Simplify the multiplication.

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-16 + 16 - 7y = 5 + 16         Add 16 to both sides. Left side cancels out 16

-7y = 5 + 16         Solved right side by adding

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Therefore the answer is (-4, -3).

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3 years ago
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364.5 because 9 to the third power is 729. 729 divided by 2 is 364.5

7 0
3 years ago
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stealth61 [152]

Answer:

x = 11, -1

Step-by-step explanation:

First, let's identify what the quadratic formula is:

x = [-b ± √(b² - 4(a)(c))] / 2

Our equation is written in standard form:

ax² + bx + c = 0

x² - 10x - 11 = 0

Let's plug in what we know.

x = [-(-10) ± √((-10)² - 4(1)(-11))] / 2

Evaluate the exponent.

x = [-(-10) ± √(100 - 4(1)(-11))] / 2

Simplify the negatives.

x = [10 ± √(100 - 4(1)(-11))] / 2

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x = [10 ± √(100 + 44)] / 2

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x = [10 ± √(144)] / 2

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x = [10 ± 12] / 2

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or

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Answer:

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Step-by-step explanation:

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