what is the answer to (x-1)+(2x+3) ?

Answer:

Step-by-step explanation:

Represent the three even numbers as 2x, 2y, 2z, where x,y,z are integers.

2x+2y+2z = 108

x+y+z = 54

Let x≤y≤z

x = z/2

y = ¾z

z/2 + 3z/4 + z = 54

2z/4 + 3z/4 + 4z/4 = 54

2z + 3z + 4z = 216

9z = 216

z = 24

x = z/2 = 12

y  = ¾z = 18

The numbers are 24, 36, 48

Answer:

C) x=8, 9, 14, 9, 7

Step-by-step explanation:

2x-7=x+1

2x-x-7+7=x-x+1+7

x=8

Answer:

the answer is 7

Step-by-step explanation:

The mean absolute deviation of the scores 299, 281, 285, 269, 280, 269, 286, 287 is, 7.5

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.

For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Now, We know that;

The mean absolute deviation (MAD) is a measure of the dispersion of a set of data. It is calculated as the average absolute difference between each data point and the mean of the set.

Hence, To find the MAD for the given scores, first find the mean of the scores:

= (299 + 281 + 285 + 269 + 280 + 269 + 286 + 287) / 8

= 280.5

Then, find the absolute difference between each score and the mean, and take the average of these differences:

= (|299 - 280.5| + |281 - 280.5| + |285 - 280.5| + |269 - 280.5| + |280 - 280.5| + |269 - 280.5| + |286 - 280.5| + |287 - 280.5|) / 8

= (18.5 + 0.5 + 4.5 + 11.5 + 0.5 + 11.5 + 5.5 + 6.5) / 8

= 7.5

So, the mean absolute deviation of the scores is 7.5.

To learn more about the mean absolute deviation, visit:

brainly.com/question/10528201

#SPJ3

Answer:

cool

Step-by-step explanation:

Answer:

1630.77

Step-by-step explanation:

795 * 20% = 159

159 divided 9.75% equals 1630.77

hope this helps :)

Answer:

Mean is 83.7%

And, the standard deviation is 0.033

Step-by-step explanation:

The computation of the mean and the standard deviation is as follows:

Let us assume the P be the sample proportion

Mean is 83.7%

And, the standard deviation is

[tex]= \sqrt{\frac{p(1-p)}{n} } \\\\=\sqrt{\frac{0.837(1-0.837)}{125} }[/tex]

= 0.033

Answer:

The 2nd one

Step-by-step explanation:

It is a compression, because you are multiplying by a whole number greater than 1, therefor the line will look thinner

9514 1404 393

Answer:

  x = 12

Step-by-step explanation:

We can find x using either the measure of angle B, or the measure of angle A.

Using A, we have ...

  48 = x^2 -8x

Adding 16 completes the square:

  64 = x^2 -8x +16 = (x -4)^2

Then the positive solution is ...

  √64 = x -4

  x = 4 +8 = 12

The triangles are similar when x=12.

__

Check

We expect angle B to be 84° when x=12:

  (x^2 -5x) = x(x -5) = 12(7) = 84 . . . . as needed

Answer:

A

7 to 9

Step-by-step explanation:

We have that:

The ratio of the edges is x.

The ratio of the surface areas is given by [tex]x^2[/tex]

The ratio of the volumes is given by [tex]x^3[/tex]

In this question, we have that:

[tex]x^2 = \frac{49}{81}[/tex]

So

[tex]x = \sqrt{\frac{49}{81}} = \frac{7}{9}[/tex]

So the correct answer is given by option A.

Answer:

8

Step-by-step explanation:

so openeing the parenthesis we get

a2+2ab+b2=10

a2+2(1) +b2=10

a2+2+b2= 10

a2+b2=8

if my answer helps please mark as brainliest

Answer:

Place one dot at (0,-2) and another point at (-1,-1) then draw a line through it. Then place a dot at (0,3) and (1,0) And draw a line through those two points. Wherever those two lines intercept will be your answer.

Step-by-step explanation:

Answer:

good

those desert people ought to use less water

Answer:

2/3 of 4=8/3or 2 2/3 is your answer

Answer:

I have 2.66667 As a fraction it is 4/1

Step-by-step explanation:

I'm not completely sure I'm new to this :|

In this exercise we will use the differential equations to calculate finances, we find that:

a) [tex]Profit = (x - 3)f(x)[/tex]

b) [tex]P' = f(x) + (x - 1) f'(x)[/tex]

c) [tex]P' = 29400[/tex]

The cost of producing the items is the total expenses of production while the revenue is the amount of money generated from selling the item.

a)Then using the given formula and substituting for the known values ​​we find that;

[tex]Cost = \ cost \ of \ producing \ one \ item * number \ of \ items \ produced\\Cost = $3 * f(x) = 3f(x)\\Revenue = selling \ price \ of \ one \ item * number \ of \ items \ produced\\Revenue = x * f(x) = xf(x)\\Profit = Revenue - Cost = xf(x) - 3f(x)\\Profit = (x - 3)f(x)[/tex]

b) Applying knowledge of differential equations we find that:

[tex]P' = d/dx(xf(x) - 3f(x) )\\P' = f(x) + xf'(x) - f'(x)\\P' = f(x) + (x - 1) f'(x)[/tex]

c)Substituting the known values ​​into the formula given above, we find that:

[tex]f(x) = 3000, x = $45, f'(x) = -600 items / 1$\\P' = 3000 + (45 - 1)(-600)\\P' = 3000 + 26400\\P' = 29400[/tex]

See more about differential equations at brainly.com/question/25731911

Answer:

all of them are except for 3/10

Step-by-step explanation:

Answer:

3/6

Step-by-step explanation:

plz mark as brainliest

thank you

19NBoli

Answer:

12

Step-by-step explanation:

its either 12 or 18 try 12 first

Answer:

−1,−4,−9,−14,-19,-24,-29,-34,-39,-44,-49,-54

Step-by-step explanation:

Sum is 3 then 5

Answer:

Is there a question?

Step-by-step explanation:

Answer:

the last one?

Step-by-step explanation:

i dont know, but that one seems like it would

Answer:

answer is A if only one can be chosen. if more than one can be, b might be an answer as well, but not c and d.

Step-by-step explanation:

think of a 3 4 5 triangle for answer a.

just remembered this method, do Pythagorean theorem for each answer. that will tell you which equals a triangle. answer a foe sure is one cmbecuase of a 3 4 5 triangle.

Answer:

1 4/5 pounds

Step-by-step explanation:

15-6= 9

9-4=5

3/5+4/5=7/5 or 1 2/5

5-1=4

4-2/5=3 3/5

half of 3 is 1.5 or 1 5/10

3/5=6/10 half of 6/10 is 3/10

3/10+5/10= 8/10

simplify 1 8/10= 1 4/5

Answer:

324

Step-by-step explanation:

4 × 6 × 11 in = 264 [tex]in^{2}[/tex]

3 × 4 × 5 in = 60 [tex]in^{2}[/tex]

264+60= 324

Answer:

Time T = 15 year

Step-by-step explanation:

Given:

Interest I = $270,000

Principal P = $150,000

Rate R = 12% = 0.12

Find:

Time T

Computation:

I = PRT

270,000 = (150,000)(0.12)(T)

270,000 = (18,000)(T)

Time T = 15 year

Answer:

Story: Mr. Lanre bought 8 apples for $2. What is the cost of each apple.

Step-by-step explanation:

Given

[tex]Answer = \frac{1}{4}[/tex]

Required

Write a division story

A division story could be:

Mr. Lanre bought 8 apples for $2. What is the cost of each apple.

Solving the above problem, we have:

[tex]Apples = 8[/tex]

[tex]Total\ Cost =\$2[/tex]

The cost of each is:

[tex]Each = \frac{Total\ Cost}{Apples}[/tex]

[tex]Each = \frac{2}{8}[/tex]

Simplify fraction

[tex]Each = \frac{1}{4}[/tex]

Answer:

I think 24

let b=3

l=4

and h=2

Answer:

864

Good luck!

8/15

Hope this helps!

Answer:

[tex]\frac{8}{15}[/tex]

Step-by-step explanation:

[tex]Tan(k)=\frac{24}{45} =\frac{8}{15}[/tex]