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1 year ago

ASAP PLEASE HELP!!

Mathematics

2 answers:

hoa [83]1 year ago

7 0

<h2>Answer:</h2>

D. save up and pay cash - is the right option.

<h2>Step-by-step explanation:</h2>

Calculating the cost of laptop in all scenarios:

Rent to own payment:

$150 each month for 12 months. Total becomes:

$150\times12=1800$ dollars.

Installment plan:

$100.83 each month for 12 months. Total becomes:

$100.83\times12=1209.96$ dollars.

Cash price is $1000.

So, the lowest is the cash price. For other options, you have to pay more.

Calculating the cost of refrigerator in all scenarios:

Rent to own payment:

$140 each month for 12 months. Total becomes:

$140\times12=1680$ dollars.

Installment plan:

$80.67 each month for 12 months. Total becomes:

$80.67\times12=968.04$ dollars.

Cash price is $800.

So, the lowest is the cash price. For other options, you have to pay more.

Therefore, the correct option will be :

D. save up and pay cash

jenyasd209 [6]1 year ago

5 0

Answer:

save up and pay cash

Step-by-step explanation:

paying cash is always the best idea and not trying to get so much debit. If you did one other otion and have the debit some emergency can come up and you will not be able to pay for that, and aying cash you save more money

You might be interested in

Rita makes and sells necklaces. The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make

Tresset [83]

Answer:

The error she made was that she was adding x and 2.75. She should subtract 2.75 from x.

Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.

Step-by-step explanation:

The error she made was that she was adding x and 2.75.

She should write the equation as 8 (x - 2.75) = 78; as she spends $2.75 to make a necklace.

By using the correct equation: 8 (x - 2.75) = 78

=> 8x - 22 = 78

=> 8x = 78 + 22

=> 8x = 100

=> x = 100/8

=> x = 12.5

Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.

Hope this helps you.

3 0

1 year ago

The highest recorded temperature during the month of July for a given year in Death Valley, California has an approximately norm

S_A_V [24]

Answer:

$P(X$

And we can find this probability using excel or the normal standard tabe and we got:

$P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the temperatures of a population, and for this case we know the distribution for X is given by:

$X \sim N(123.8,3.1)$

Where $\mu=123.8$ and $\sigma=3.1$

We are interested on this probability

$P(X$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

$P(X$

And we can find this probability using excel or the normal standard tabe and we got:

$P(z$

6 0

2 years ago

The number of hours walked varies inversely with the speed of the walker. if it takes sam 12 hours to complete his walking goal

Effectus [21]

We let k be the proportionality constant for the relationship between number of hours, h and speed of the walker, s.

h = k/s
Substituting the known values,
12 = k/5
k = 60

For the second scenario,
h = k/s
Substituting the calculated value for k and the given value for speed,
h = (60)(3 miles/hour)
h = 20 hours
h = 20 hours

Therefore, it will take 20 hours to walk with a speed of 3 miles per hour.

7 0

1 year ago

The table represents an exponential function.

Minchanka [31]

we know that

The multiplicative rate of change of the exponential function between two points is equal to

$[f(b) / f(a) ] / (b-a)$