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4 years ago

8

A laptop computer is purchased for $1550 . after each year, the resale value decreases by 25% . what will the resale value be af

ter 3 years?

1 answer:

stich3 [128]4 years ago

3 0

The resale value after 3 years would be 387.50. Hope this helps!

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What is the solution to the equation below? ½ x+¾=⅔

lora16 [44]

Answer:

$\boxed{x = - \frac{1}{6}}$

Step-by-step explanation:

$= > \frac{1}{2} x + \frac{3}{4} = \frac{2}{3} \\ \\ = > \frac{1}{2} x = \frac{2}{3} - \frac{3}{4} \\ \\ = > \frac{1}{2} x = ( \frac{2}{3} \times \frac{4}{4} ) - (\frac{3}{4} \times \frac{3}{3} ) \\ \\ = > \frac{1}{2} x = \frac{8}{12} - \frac{9}{12} \\ \\ = > \frac{1}{2} x = \frac{8 - 9}{12} \\ \\ = > \frac{1}{2} x = - \frac{1}{12} \\ \\ = > x = 2 \times ( - \frac{1}{12} ) \\ \\ = > x = - \frac{1}{6}$

6 0

3 years ago

What is the slope of a line perpendicular to the line whose equation is 2y=-6x+8

Effectus [21]

2y=-6x+8

First, the slope of any equation, is always the coefficient with the variable "x".

So, the slope for this line, is -6x.

To get rid of the coefficient with y, we need to divide 2, from both sides of the equal sign.

<u>2y=-6x+8</u>

2

y=-3+4

Now that we have our new equation, we can see that the slope of our line has also changed, from -6x to-3x. Because -6÷2=-3.

And to find the perpendicular slope, you change the reciprocal of the slope so from -3 to 1/-3 and then you change the sign of the slope so from 1/-3 to 1/3. That is your final answer.

The answer is 2) 1/3.

5 0

3 years ago

Read 2 more answers

A polling organization announces that the proportion of American voters who favor congressional term limits is 64%, with a 95% c

EastWind [94]

Answer:

Hence when C.I. is 80% then Margin of error will be 1.9591%

Step-by-step explanation:

Given:

1st Margin of error(MOE)=3%

1st C.I.=95%

2nd C.I.=80%

To Find:

MOE at 80%

Solution:

The proportion is 64 % i.e. is constant for both MOE

Proportion is given by (P),

P=x/n

Where x= favors congressional terms

n= total voters or sampled voters.

There values are same or constant.

i.e standard deviation is also constant

Now Formula for MOE is given by

$MOE=Z*[Standard devation/Sqrt(n)]$

here Z is value for confidence interval

MOE is directly proportional to the Z-value

So

$MOE=K*Z-value$ ... where k is proportionality constant.

$MOE/Z-value$ ....ratio is constant

So , for 95 % Z=1.96 and for 80% Z=1.28

$MOE(1st)/(Z-value 1st)=MOE(2nd)/(Z-value 2nd)$

$3/1.96=MOE(2nd)/1.28$

$MOE(2nd)=(3/1.96)*1.28$

$MOE(2nd)=1.5306*1.28$

$=1.9591$ %

5 0

3 years ago

What is the unit rate of 36 gal in 12 min

Vesna [10]

To find how many gallons in 12 min,

36 ?
---- = -----
12 1
Cross multiply

36x1=36

12x?=36

36/12=3

The unit rate is 3 gallons in 1 minute.

I hope I helped!

7 0

3 years ago

Read 2 more answers

Which of the following shows these numbers in order from least to greatest?

koban [17]

9514 1404 393

Answer:

$\sqrt[3]{2197}, 14\frac{1}{3}, 13\frac{12}{8}, \sqrt{213.16}, 15, 2^4$

Step-by-step explanation:

The values of the given numbers, in order, rounded to 1 decimal place are ...

$\begin{array}{cc}\sqrt{213.16}&14.6\\14\frac{1}{3}&14.3\\15&15.0\\13\frac{12}{8}&14.5\\2^4&16.0\\\sqrt[3]{2197}&13.0\end{array}$

Their least-to-greatest ordering is shown above.

4 0

3 years ago