What is -7x-3x+2=-8x-8 show your work

Solution

Leased cost for 3 years  = $3000 + 250 *36                    [ 3 years = 36 months]

= 3000 + 9000

Leased the car for 3 years cost you = $12,000

The residual value = $10,000

Assume that you bought the car and used for 3 years and sold for $10,000

Cost of the car = $24,000

Sold after 3 years for $10,000

Your expense in 3 years = $24,000 - 10, 000 = $14,000

By comparing these two options, leasing the car will benefit you since it cost only $12,000.

Therefore, lease car is less expense.

The cost for buying the car and selling it after three years would be $14,000.

That is the answer. :)

Thank you.

The amount is written in improper fraction.

To know, which amount is greatest, we will convert these improper fraction to proper decimal form values by division method and then we will compare the values.

A. [tex]\frac{33}{4}=8.25[/tex]

B. [tex]\frac{22}{3}=7.33[/tex]

C. [tex]\frac{78}{9}=8.66[/tex]

D. [tex]\frac{43}{5}=8.60[/tex]

Hence, the greatest amount is option C. [tex]\frac{78}{9}[/tex]

Hey there!

The only thing we can do to simplify this expression is to combine 5a and 2a, the two like terms in the expression.

Our final answer is 7a + 9.

Hope this helps!

if k=3 than 15k    (5 mutiple k) 5*3=45

The value of the expression 15k when the value of k is 3, will be 45.

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

It is also known as the product. If the object n is given to m times then we just simply multiply them.

The expression is given below.

⇒ 15k

If the value of the k is 3, then the value of the expression will be

⇒ 15 × 3

⇒ 45

The value of the expression 15k when the value of k is 3, will be 45.

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Answer:

Area of square =  64 square units .

Step-by-step explanation:

Given :  length of the side is √8.

To find : Find the area of a square piece of cardboard .

Solution : We have given side length of square cardboard = √8.

Area of square = side * side .

Area of  square = √8 *√8.

Area of square =  64 square units .

Therefore, Area of square =  64 square units .

Answer:

500,000

Step-by-step explanation:

Answer:

Step-by-step explanation:

if the hundred is 500+ round it up...if smaller than 500 round down. (:

To find the mean you must:

-17 + -14 + -9 + 0 + 12 + 32 + 52 = 56

Then divide 56 by how many numbers are in this set so there are 7 numbers so we divide 56 by 7 and I don't even have to do the work for this because it's basic multiplication.

The answer is: 8.

Answer:

Mean is 8

Step-by-step explanation:

Given observations,

-17,  32,  -9,  0,  52,  12, -14

Sum of the observations =  -17 + 32 + (-9) + 0 + 52 + 12 + (-14)

= 96 - 40

= 56

Number of observations = 7,

Hence,

[tex]\text{Mean} = \frac{\text{Sum of the observations}}{\text{Number of the observations}}[/tex]

[tex]=\frac{56}{7}[/tex]

= 8

Answer:

An average reader can read 121.43 words per minute efficiently.

Explanation:

 A speed reader can read 850 efficient words per minute.

 An average reader can read at approximately 1/7 that speed.

 Total word read by an average reader per minute is given = 850* 1/7

                            = 121.43 words per minute

So an average reader can read 121.43 words per minute efficiently.

First years flies = 6,692 miles ≈7000 miles.

Second year flies =  16,429 miles ≈ 16000.

Third year flies = 24,211 miles ≈ 24000

Total number of miles flies in first and second year = 7,000miles +16,000 miles

Number of more miles he flew in the third year than the first and second year combined = Number of miles flies in third year - Total number of miles flies in first and second year

Number of more miles he flew in the third year than the first and second year combined 24,000 - (7,000+16,000)

Therefore, 24,000 - (7,000+16,000) estimation of how many more miles he flew in the third year than the first and second year combined.

(1/4)*(4*x+15) = 24 // - 24

(1/4)*(4*x+15)-24 = 0

1/4*(4*x+15)-24 = 0

1/4*(4*x+15)-24 = 0

x-81/4 = 0

x-81/4 = 0

x-81/4 = 0 // + 81/4

x = 81/4

x = 81/4

hope I helped

Answer:

155.82 miles

Step-by-step explanation:

You multiply 6 and 25.97 to get your answer.

the answer is 155.82 miles

The equivalent expression for the given expression is 2x+3.

Equivalent expressions are expressions that work the same even though they look different. If two algebraic expressions are equivalent, then the two expressions have the same value when we plug in the same value for the variable.

The given expression is 1/4 (8x+12).

Here, multiply 1/4 into a bracket, we get

= 8x/4 +12/4

= 2x+3

Therefore, the equivalent expression for the given expression is 2x+3.

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Perimeter of a rectangle can be represented by 2* length + 2 * width

We can represent the width with the variable x

We can represent the length by the expression 3x-1

So, now we can make a forumla and solve

2(3x-1) + 2(x) = 30

6x-2+2x = 30

8x = 32

x = 4 is the width of the rectange.

Now we find the length

3(4)-1

11 = Length

The width of the rectangle is 4 inches and its length is 11 inches.

A rectangle is a plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square.

The Perimeter of rectangle is -

P = 2(x + y)

The Area of rectangle is -

A = xy

We can write -

P = 2x + 2y

Py = 2xy + 2y²

Py = 2A + 2y²

2y² - Py + 2A = 0

y = ± (P² - 16A)/4

Given is a rectangle that has a perimeter of 30 inches. Its length is one less than three times its width

Assume the length to be [x] inches and width be [y] inches. Then, we can write -

[x] = 3[y] - 1

and

2(x + y) = 30

2(3y - 1 + y) = 30

2(4y - 1) = 30

8y - 2 = 30

y = 4 inches

then -

x = 12 - 1

x = 11 inches

Hence, the width of the rectangle is 4 inches and its length is 11 inches.

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Solution:

The outlier is 17

With Outlier

4 + 5 + 5 + 7 + 9 + 17 = 47

47 / 6 = 7.83333333...

Without Outlier

4 + 5 + 5 + 7 + 9 = 30

30 / 5 = 6

Mean With Outlier - 7.8333...

Mean Without Outlier - 6

Answer - 3. It will decrease

Answer:

17

Step-by-step explanation:

Hi there!!

Here is the answer =

Step 1 : simplify 10^2 to 100

Step 2 : 35.5 ÷100

Answer confirmed = 0.355

Hope this helps you!!!

Final answer:

Dividing 35.5 by 10 to the power of 2 (which is 100) results in 0.355, achieved by moving the decimal point two places to the left.

Explanation:

To calculate 35.5 divided by 102, you need to understand the concept of exponents. The expression 102 means 10 multiplied by itself twice, which equals 100.

Now, dividing 35.5 by 100, you move the decimal point two places to the left because dividing by a power of 10 shifts the decimal point to the left for each zero in that power. Therefore, when 35.5 is divided by 102 it will be equal 0.355.

First you want to organize the numbers in order to find the median so it should look like this: 14, 28, 42, 56. Then you want to find the one in the middle. But oh wait there are TWO in the middle so add 42 and 28 up 70 then divide it by 2 which equals your median of 35.

Answer: 56

Step-by-step explanation: Apex

Assume that the width=w

22=2w+2(w+1)

22=2w+2w+2

22=4w+2

20=4w

w=5

The dimensions are 4 by 5.

The dimensions of the rectangle photograph are 5.5 inches (width) by 6.5 inches (length), calculated by setting the given perimeter equal to twice the sum of the length and the width, and then solving for the width and length.

The perimeter of a rectangle is the sum of all its sides. Given that the perimeter of the photograph is 22 inches, you can work out the length and width using algebra. Let's denote the width of the photograph as 'x' (in inches). Thus, the length is 'x + 1' since it is one inch more than the width. Since the rectangle has two equal lengths and two equal widths, its perimeter can be represented as 2*(length + width) or 2*(x + x + 1). Setting this equal to 22 (the perimeter), we get 2*(2x + 1) = 22. Solving for 'x' gives us the width, which is 5.5 inches. The length is therefore 6.5 inches, being 1 inch more than the width. Therefore, the dimensions of the rectangle are 5.5 inches by 6.5 inches.

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-1 C, that's the only logical answer I can think of. Or does it have to be in F?

The change in temperature is a decrease of 1°C, which is calculated by subtracting the initial temperature from the final temperature.

The question involves calculating the change in temperature from -3°C to -4°C. To find the change in temperature, you subtract the initial temperature from the final temperature. In this case, the change would be:

-4°C - (-3°C) = -4°C + 3°C = -1°C.

So the change in temperature is a decrease of 1°C.

The lowest possible value of the house is £205000 and highest possible value is £214999.99...

Given that:

The house is valued £210000, correct to 2 significant figures.

Since its correct to 2 significant figures, thus there is error of approx 10000 range in £210000

The lowest possible number that would round up to 2 significant numbers  to £210000 is £205000 since any value lower than that would look like £204..... which won't round up to £21..... but £20....

Similarly, the highest possible number that would round up to 2 significant figures to £210000 is £214999.999... since any real number bigger than that would make starting digit of the number as £215.... and thus 2 significant figure rounding will lead to £22....

Thus, the lowest possible value of the house is £205000 and highest possible value is £214999.99...

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We are given

Marta is making a quilt in the shape of a square

The length of one edge of the quilt is 2g^2h^3

so, we get

[tex]s=2g^2h^3[/tex]

now, we know that

area of square = length *length

so, we get

[tex]A=s^2[/tex]

now, we can plug values

and we get

[tex]A=(2g^2h^3)^2[/tex]

we can simplify it

[tex]A=2^2(g^2)^2(h^3)^2[/tex]

[tex]A=4g^4h^6[/tex].............Answer

r = 5

calculate the slope m using the gradient formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with ( x₁, y₁ ) = (6, - 2 ) and (x₂, y₂ ) = (r, - 6)

m = [tex]\frac{-6+2}{r-6}[/tex] = [tex]\frac{-4}{r-6}[/tex] = 4

cross multiply

4(r - 6 ) = - 4

4r - 24 = 4 ( add 24 to both sides and divide by 4 )

4r = 20

r = [tex]\frac{20}{4}[/tex] = 5

The value of r so that the Slope of a line passes through the points (6,-2) and (r,-6) with a slope of 4 is 7.

In mathematics, the slope of a line through two points can be determined using the formula m = (y2 - y1) / (x2 - x1), where m is the slope, (x1, y1) and (x2, y2) are the coordinates of two points on the line.

In your case, the given points are (6, -2) and (r, -6) and the slope (m) is given to be 4. So, insering these values in the formula, you get: 4 = (-6 - (-2)) / (r - 6).

By simplifying the above equation, we find that r = 7.

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First let's write it out with just numbers

6×[tex]10^{5}[/tex]

Now solve!

Solve exponent first

10^5 = 100,000

Now multiply

6 x 100,000 = 600,000

600,000 is your answer

The number 6 x 10^5 in standard form equates to 600000. The conversion involves moving the decimal place the same number of steps as the power of ten indicates

The conversion of 6 x 10 to the power of 5 into standard form involves interpreting the exponent as the number of places to shift the decimal point. In this case, the decimal point will be moved five places to the right.

Thus, 6 x 10 is equivalent to 600000 in standard form.

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Answer:

The cost of each computer before finance is:

Desktop: $2900.00,  Laptop: $3200.00

Step-by-step explanation:

Lets say the cost of Desktop is 'D' dollars.

The cost of laptop is [tex]=D+300[/tex] dollars.

Total finance charge for 1 year is given by:

[tex]0.06\times D+0.07 \times (D+300)=398[/tex]

Solving for D we get:

[tex]0.06D+0.07D+21=398[/tex].......(equation 1)

[tex]0.13D=398-21=377[/tex]

[tex]D=\frac{377}{0.13} =2900[/tex]

Now the cost of laptop is D+300:

[tex]D+300=2900+300=3200[/tex]

So before finance, the cost of desktop was $2900.00 and the cost of laptop was $3200.00.

P.S: You can check if your calculation is correct by plugging the values of the cost of laptop and desktop in the equation 1.

Answer:

0.24 with a line over the 24. The line means that it is repeating.

Explanation,

There is not much to explain it's just simple divison.

the answer is 128 because 51 + 77= 128

The product is 3927.

I would say the best estimate would be 9 because the real answer is 8.71 and if you round that to the 1 place the answer would be 9.