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max2010maxim [7]
3 years ago
7

Orlando bought a new couch for $2,904, using the furniture store's finance plan. He will pay $121 a month for 24 months. Which e

quation can Orlando use to find out how much money he still owes after each month of the plan?
Select one:
a. y=2,904+121x

b. y=2904−121x

c. y=121x−2,904

d. y=121x
Mathematics
2 answers:
kotegsom [21]3 years ago
3 0
So we want to know how much Orlando owes, here's the answer:

Since he pays 121$ every month, the formula would be this:

y = 2,904 - 121x, if we consider x = months.

So the answer is B, y = 2,904 - 121x

Hope this helped! c:
Kay [80]3 years ago
3 0

Answer:

b. y=2904-121x

Step-by-step explanation:

Cost of the couch = $2904

Orlando will pay for 24 months = $121

The equation that Orlando can use to find out how much money he still owes after each month of the plan will be :

y=2904-121x

Let us check this :

Let us take x = 1

y=2904-121 = $2783 left to pay

Let us take x = 2

y=2904-121(2) = $2662 left to pay

Let us check x = 4

y=2904-121(4) = $2420 left to pay

Therefore, option B is correct.

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The amount, A, in milligrams, of radioactive material remaining in a container can be modeled by the exponential function A(t) =
lisov135 [29]

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Step-by-step explanation:

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(also known as 5 exp(-λ t) with λ = ln(2)/4, incidentally).


We need to such that A(t) = 2.5mg, or 2^(-t/4) is 1/2, which happens when -t/4 is -1, or t is 4.



4 0
4 years ago
Michael is running for president. The proportion of voters who favor Michael is 0.8. A random sample of 100 voters is taken.
Anton [14]

Answer:

Michael is running for president. The proportion of voters who favor him is 0.3. A simple random sample of 100 voters is taken.

a)

What is the expected value :: n*p = 100*0.8 = 80

standard deviation:: sqrt(n*p*q) = sqrt(80*0.2) = 16

where q is proportion of voters who do not favor Michael. (q=0.2)

and shape of the sampling distribution is binomial distribution  which is  approximately a  bell shaped.

-------------------------

what is the probability that the number of voters in the sample who will not favor Michael will be more than 16

P(X < 16.0) = P((x - 20) / 4.0) < (16.0 - 20) / 4.0) = P(Z < -1.00) = .1587        

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5 0
3 years ago
Which could be a conditional relative frequency table ???
user100 [1]

Answer:

The table that represents the conditional relative frequency is:

                           A                B                Total

C                        0.25           0.75             1.0

D                        0.35           0.65             1.0

Total                 0.30           0.70              1.0

Step-by-step explanation:

We know that a conditional relative frequency table is one:

In which the entries in each row is divided by the row total .

                        OR

In which the entries in each column is divided by the column total.

i.e. the frequency or quantity of an item is being compared either to row or to the column total.

Hence, from the given options, the table that represent the conditional relative frequency is:

                           A                B                Total

C                        0.25           0.75             1.0

D                        0.35           0.65             1.0

Total                 0.30           0.70              1.0

 

8 0
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sertanlavr [38]

Answer:

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4 0
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