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wariber [46]
3 years ago
10

Jenny has a $3,000 balance on her credit card with an 18% interest rate. If she makes no payments on her card and no late fees w

ere charged how long will it take her debt to double?
Mathematics
1 answer:
DENIUS [597]3 years ago
7 0

Answer:

it would take about 4.2 years for her debt to double.

Step-by-step explanation:

With a principal of $3000, and an annual interest rate of 18%, the equation for accumulated debt as a function of time in years, would be given by the expression:

A(t)=3000\,(1+0.18)^t

now, if we want to find when the debt would double, we replace A(t) with $6000, and solve for the time 't' using logarithms to bring down the unknown (t) that resides in the exponent:

A(t)=3000\,(1+0.18)^t\\6000=3000\,(1.18)^t\\2=(1.18)^t\\log(2)=t\, \, log(1.18)\\t=\frac{log(2)}{log(1.18)} \\t=4.1878\,\,years

which we can round to approximately 4.2 years

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Quadrilateral PQRS is transformed by translating it 6 units to the right and then rotating it 90° clockwise
Elina [12.6K]

Answer:

(y, -x -6)

Step-by-step explanation:

<em>The coordinates of PQRS is not given, however we'll assume the coordinates of PQRS to be (x,y)</em>

<em />

The first transformation: 6 units right

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So, the new coordinates will be

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The second transformation: 90° clockwise

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So, the new coordinates will be

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<em>Hence, the new coordinates of PQRS is (y, -x - 6)</em>

7 0
2 years ago
If we increase the number 100 by 10% and then reduce the resulting number by 20% what would the answer be plz show how u did it
Readme [11.4K]

Answer:

88

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100 × (1 + 10%)

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Calculate decrease.

110 × (1 - 20%)

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4 0
3 years ago
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P = 4a...where a is the length of one side
P = 4(27)
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2 years ago
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