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2 years ago

I=$720, P=$1000, r=9% Find the amount of the time.

Mathematics

2 answers:

bazaltina [42]2 years ago

7 0

Answer:

The amount of time is 8 years

Step-by-step explanation:

Simple interest refers to the interest produced by initial capital over a period of time. This does not accumulate to the capital to produce the interests of the following period, so the interest generated or paid in all periods is the same, while the interest rate and term dont vary.

The amount of interest paid or charged depends on three important amounts: Capital, rate and time. This is expressed by the following equation:

I = P * r * t

Where:

I = interest .
P = initial capital .
r = interest rate in decimals (it is usually a given data in percentage, which you must divide by 100 to get the value in decimals) .
t = time in years .

In this case I has a value of $ 720, P has a value of $ 1000 and r of 9%, which making the conversion to decimal is 0.09

Replacing in the equation you get:

720=1000*0.09*t

Multiplying 1000 * 0.09 you get:

720=90*t

Dividing both sides by 90, in order to isolate t, you get:

$\frac{720}{90} =\frac{90}{90} *t$

8=t

Remembering that the value of t is expressed in years, this means that the amount of time is 8 years.

netineya [11]2 years ago

4 0

I = PRT....looking for T...re-arrange......I / PR = T

I / PR = T
I = 720
P = 1000
R = 9% = 0.09
now we sub
720 / (1000)(0.09) = T
720 / 90 = T
8 = T <===

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According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 20

Murljashka [212]

Answer:

There is not enough evidence to support the claim that Alaska had a lower proportion of identity theft than 23%.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1432

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Alpha, α = 0.05

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First, we design the null and the alternate hypothesis

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This is a one-tailed test.

Formula:

$\hat{p} = \dfrac{x}{n} = \dfrac{321}{1432} =0.2241$

$z = \dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Putting the values, we get,

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P-value = 0.298

Since the p-value is greater than the significance level, we fail to reject the null hypothesis and accept the null hypothesis.

Conclusion:

Thus, there is not enough evidence to support the claim that Alaska had a lower proportion of identity theft than 23%.

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2 years ago

What is an explicit formula for the following recusive formula an=an-1+7;a1=2

Artyom0805 [142]

ANSWER
D.
EXPLANATION
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and

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juin [17]

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jeka57 [31]

BD is right but PA is wrong, would be BD and MK.

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inysia [295]

Answer:

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Step-by-step explanation:

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