Look at this expression, and complete the statement 3x+2(x+2)+4

Answers

Answer 1

the answer is 3y+2x+8


Related Questions

a patient receives 65 grams of medicine if its increased by 20% how many grams is that

Answers

Responda:

13 gramas

Explicação passo a passo:

65 + 20% = 13

A metal alloy is 27% copper. Another metal alloy is 52% copper. How much of each should be used to make 22 g of an alloy that is 36.09% copper?

Answers

Answer:

14.0008 grams of 27% and 7.9992 grams of 52%

Step-by-step explanation:

We know that in the end we want 22 grams of 36.09% copper, meaning in the end we want 36.09% of the 22 grams to be copper. This means we can multiply 36.09% by 22 to see how much copper we want in the end.

To find out how much of each alloy to use, we can multiply the percentage of copper in the alloy be a variable x, which will be how much of that alloy we use. For the other alloy, we can multiply the percentage by (22-x) grams as we know in the end we want 22 grams and if x+y=22, than y would equal 22-x, and in this case this simplifies it to only use a single variable.

Now finally, making the equation we get 27x+52(22-x)=36.09(22). We can solve this and get 27x+1144-52x=793.98, then combine like terms and get -25x+1144=793.98. Next you have to subtract 1144 from both sides to get -25x=-350.02. Dividing both sides by -25 we get x=14.0008. This is how many grams of 27% copper was used. Now we can subtract this from 22 to get how much 52% copper was used, and we get 22-14.0008=7.9992 grams of 52% copper.

5/6-2/7 the answer isnt 23/42 or 8/21

Answers

Answer:

Common denominator - 42

Step-by-step explanation:

6 - 6, 12, 18, 24, 30, 36, 42

7 - 7, 14, 21, 28, 35, 42

Hope this helps! :)

4 builders are building some new classrooms at Trinity. It takes them 5 months to build the classrooms. How long will it take 10 builders?

Answers

Answer:

it takes

[tex]\boxed {\red {2 \: \: months}}[/tex]

for 10 builders

Step-by-step explanation:

[tex]4 \: \: \: builders = 5 \: month \\ 10 \: builders = x[/tex]

Let us solve

[tex]4 = 5 \\ 10 = x[/tex]

so

[tex]4 = x \\ 10 = 5[/tex]

use cross multiplication

[tex]5 \times 4 = 10 \times x \\ 20 = 10x \\ \frac{20}{10} = \frac{10x}{10} \\ \green {x = 2}[/tex]

Answer:

[tex]\boxed{2months}[/tex]

Step-by-step explanation:

B1 = 4

M1 = 5

B2 = 10

M2 = x (we have to find this)

Since it is an inverse proportion (more builders will take less time and vive versa), we'll write it in the order of

=> B1 : B2 = M2 : M1

=> 4:10 = x : 5

Product of Means = Product of Extremes

=> 10*x = 4*5

=> 10x = 20

Dividing both sides by 10

=> x = 2 months

So, it will take 2 months to build classrooms by 10 builders.

Find the length of UC

Answers

Answer: 25 units

Step-by-step explanation:

Simply do 40(UN)-15(CN) to get 25(UC)

Hope it helps <3

Answer:

25

Option D is the correct option

Solution,

Here,

UN = 40

CN = 15

Now,

UN = UC + CN

plugging the values,

40 = UC + 15

-UC = 15 - 40

-UC = -25

The difference sign (-) will be cancelled in both sides:

UC = 25

hope this helps...

Good luck on your assignment..

What is the value of 45-0.023

Answers

The value is 44.977

Feel pleasure to help u

Answer:

44.977

Step-by-step explanation:

A bread recipe calls for 2 1/2 cups of whole wheat flour 2/3 cups of rice flour 2 1/4 cups of white flour how many total cups of flour are needed write your answer as a simplified mixed number

Answers

Answer:

5 5/12

Step-by-step explanation:

you find the common denominator which is 12

2 6/12

8/12

2 3/12

now u add them all

hope this helps

Answer:

5 5/12 cups

Step-by-step explanation:

Want Brainliest? Get this correct Which of the following is the quotient of the rational expressions shown below? Make sure your answer is in reduced form.

Answers

Answer:

B.

Step-by-step explanation:

First, notice that we can cancel out an x in the second term. Thus:

[tex]\displaystyle \frac{3x^2}{x^2+x} =\frac{3x^2}{x(x+1)} =\frac{3x}{x+1}[/tex]

As with the last question, change the sign to multiplication and "flip" the second term:

[tex]\displaystyle \frac{2x-1}{x+1}\cdot \frac{x+1}{3x}[/tex]

Multiply straight across:

[tex]\displaystyle =\frac{(2x-1)(x+1)}{(x+1)(3x)}[/tex]

We can cancel the (x + 1) term:

[tex]\displaystyle =\frac{2x-1}{3x}[/tex]

This cannot be simplified further. Hence, our answer is B.

Answer:

It is B)

Step-by-step explanation:

Ap3x Approved

A line through the points (2, -9) and (j, 17) is parallel to the line 2x + 3y = 21. What is the value of j?

Answers

Answer:

j = -37

Step-by-step explanation:

First find the slope of 2x + 3y = 21

Solve for y

Subtract 2x from each side

2x-2x + 3y =-2x+ 21

3y = -2x+21

Divide by 3

3y/3 = -2x /3 + 21/3

y = -2/3 x +7

This is in slope intercept form y = mx+b where m is the slope and b is the y intercept

m = -2/3

The slope of parallel lines are equal

Using the two points

m = (y2-y1)/(x2-x1)

-2/3 = (17 - -9)/(j-2)

-2/3 = (17 +9)/(j-2)

Using cross products

-2(j-2) = 3 ( 17+9)

-2j +4 = 26*3

-2j +4 = 78

Subtract 4 each side

-2j = 78-4

-2j = 74

Divide by -2

-2j/-2 = 74/-2

j = -37

Eric works for salary of $3,500 per month. He has federal income withheld at the rate of 15%, Social Security tax at the rate of 6.2%, Medicare tax at the rate of 1.45% and health insurance premiums of $48 per month. Erik also contributes to a savings plan. Each month, 2% of his gross pay is placed in the savings plan.

After Erik pays the taxes on his money what is Eric's net pay?
A. (1,448.45)
B. (1,799.05)
C. (2,589.25)
D. (2799.05)

Answers

Answer:

C. 2,589.25

Step-by-step explanation:

Salary=$3500

Less:

Federal income withheld

15% of $3500

=15/100×$3500

=$525

Social security tax of 6.2%

6.2% of $3500

=6.2/100 × $3500

=$217

Medicare tax of 1.45%

1.45% of $3500

1.45/100 × $3500

=$50.75

Health insurance premium=$48

Savings plan of 2%

2% of $3500

=2/100 × $3500

=$70

Total less:= $525 + $217 + $50.75 + $48 + $70

Eric's net pay =$3500 - $910.75

=$2,589.25

Answer:

c

Step-by-step explanation:

The additive inverse of x/y is​

Answers

Answer

The additive inverse is

-x/-y

That is equal to x/y

hope this may help you

hey guys please help me​

Answers

Answer:

5/6

Step-by-step explanation:

The probability of the 10th roll will be 6 is 1 out 6 because there's only one side with 6 (we spouse the dice is not biased) so the probability of the roll not to be 6 is 5/6

The Marine Corps is ordering hats for all the new recruits for the entire next year. Since they do not know the exact hat sizes they will use statistics to calculate the necessary numbers. This is the data from a sample of the previous recruits: 7.2, 6.8, 6, 6.9, 7.8, 6.2, 6.4, 7.2, 7.4, 6.8, 6.7, 6, 6.4, 7, 7, 7.6, 7.6, 6, 6.8, 6.4 a. Display the data in a line plot and stem-and-leaf plot. (These plots don’t need to be pretty; just make sure I can make sense of your plots.) Describe what the plots tell you about the data. b. Find the mean, median, mode, and range. c. Is it appropriate to use a normal distribution to model this data? d. Suppose that the Marine Corps does know that the heights of new recruits are approximately normally distributed with a mean of 70.5 inches and a standard deviation of 1.5 inches. Use the mean and standard deviation to fit the new recruit heights to a normal distribution and estimate the following percentages. d1. What percent of new recruits would be taller than 72 inches? d2. What percent of new recruits would be shorter than 67.5 inches? d3. What percent of new recruits would be between 69 and 72 inches? d4. Between what two heights would capture 95% of new recruits?? By using statistics are the numbers changed to whole numbers?

Answers

Answer:

60-|||

61-

62-||

62

64-|||

65

66

67-|

68-|||

69-|

70-||

71

72-||

73

74-||

75

76-||

77

78-|

This is a stem and leaf plot.

mean is 138.2/20=6.91

median of 20 is half way between 10th and 11th or an ordered plot. The 10th and the 11th are both 6.8, so that is the median.

6.4 and 6.8 are modes, but they are so minimal I would say there isn't a clear mode.

The range is 1.8, the largest-the smallest

This is not a normal distribution.

z=(x-mean) sd

a.(72-70.5)/1.5=1 so z>1 is the probability or 0.1587.

b.shorter than 67.5 inches is (67.5-70.5)/1.5 or z < = -2, and probability is 0.0228.

c.Between 69 and 72 inches is +/- 1 sd or 0.6826.

95% is 1.96 sd s on either side or +/- 1.96*1.5=+/- 2.94 interval on either side of 70.5

(67.56, 73.44)units in inches

Step-by-step explanation:

1) A grocer sold 5 kg of wheat flour at Rs 30 per kg and gained 20%. If he had sold
it at Rs 27 per kg, what would be his gain or loss percent?

Answers

Answer:

given,

selling price (sp)=rs 5 ×30

=rs 150

now, gain %=20%

cost price (cp)=

[tex] \frac{sp \times 100}{100 + gain\%} [/tex]

[tex] = \frac{150 \times 100}{100 + 20} [/tex]

therefore cp= rs125

now,

again in 2nd case

sp= rs 27×5

therefore sp=rs 135

and cp= rs125

now, sp>cp so,

[tex]gain\% = \frac{sp - cp}{cp} \times 100\%[/tex]

or, gain=

[tex] = \frac{135 - 125}{125} \times 100\%[/tex]

therefore gain %= 8%.... is answer

hope it helps..

Find the area of the irregular figure. Round to the nearest hundredth.

Answers

Answer:

23.14

Step-by-step explanation:

Solve for the area of the figure by dividing it up into parts.  You can divide into a half-circle and a triangle

Half-Circle

The diameter is 6.  This means that the radius is 3.  Use the formula for area of a circle.  Divide the answer by two since you only have a half-circle.

A = πr²

A = π(3)²

A = 9π

A = 28.274

28.274/2 = 14.137

Triangle

The base is 3 and the height 6.  Use the formula for area of a triangle.

A = 1/2bh

A = 1/2(6)(3)

A = 3(3)

A = 9

Add the two areas together.

14.137 + 9 = 23.137 ≈ 23.14

The area is 23.14.

Answer:

23 sq. units

Step-by-step explanation:

The figure consists of a semi circle and a triangle

Area of the figure = Area of semi circle + Area of triangle

Area of semi circle is 1/2πr²

where r is the radius

radius = diameter/2

radius = 6/2 = 3

Area of semi circle is

1/2π(3)²

1/2×9π

14.14 sq. units

Area of a triangle is 1/2×b×h

h is the height

b is the base

h is 6

b is 3

Area of triangle is

1/2×3×6

9 sq. units

Area of figure is

14.14 + 9

= 23.14

Which is 23 sq. units to the nearest hundredth

Hope this helps you.

Anybody get this? Thanks in advanced

Answers

Answer:

x = 6 and y = 2

Step-by-step explanation:

2x + 3y = 18 .......... Eqn 1

3x - 3y = 12 ........... Eqn 2

Add both Equations to eliminate y

we have

2x + 3x + 3y - 3y = 18 + 12

5x = 30

Divide both sides by 5

5x / 5 = 30/5

x = 6

Substitute x = 6 into any of the Equations

Using equation 1

we have

2(6) + 3y = 18

3y = 18 - 12

3y = 6

Divide both sides by 3

That's

3y/3 = 6/3

y = 2

Therefore x = 6 and y = 2

Hope this helps

The slope of the line passing through the points (7, 5) and (21, 15) is

Answers

Answer:

5/7

Step-by-step explanation:

We are given two points so we can find the slope by using

m = (y2-y1)/(x2-x1)

    = (15-5)/(21-7)

    =10/14

   5/7

4
The equation of a circle is x2 + y2 + x + Dy+ E= 0. If the radius of the circle is decreased without changing the coordinates of the center point, how are the coefficients CD,
and E affected?
O A CD, and E are unchanged.​

Answers

Answer:

Step-by-step explanation:

in x²+y²+2gx+2fy+c=0

center=(-g,-f)

radius=√((-g)²+(-f)²-c)

if center is not changed ,then c will change .

Here only coefficients of  E will change.

-73 + 28
Can anybody help me with this

Answers

Answer:

-45 is the answer

Step-by-step explanation:

PLZZ MARK BRAINLIEST

Which best describes the relationship between the line that passes through the points (-9, 2) and (-5, 4) and the line that passes through the points (-3, 4) and (1, 6)?

Answers

Answer:

Parallel!

Step-by-step explanation:

If you put these points on a graph and connect the dots to be two lines, they are perfectly side to side :)

The most appropriate measure of center for this
data is the median
Weight of Male Dogs (lb)
4
5
COMPLER
5
2
2
Which statement about the data is true?
The mean is greater than the median
X The mean is equal to the median
* The mean is less than the median
What is the median of the data

Answers

Answer:

65

Step-by-step explanation:

45, 50, 52, 58, 62, 68, 72, 78, 81, 95

62 + 68 = 130/2 = 65

The median is 65

Answer:

The median of the data is 65

Step-by-step explanation:

I did it on edge and got it right

What are the divisors of 60?

Answers

Answer:

Step-by-step explanation:

The divisors of a number are the numbers that divide it exactly.

60/2

2/30

3/3

5/5

one

divisors = 1,2,3,, 4,5,6,10,12,15,20,30,60.

answer:

1, 2, 3, 6, 10, 30, 60

Step-by-step explanation:

i am pretty sure!

The point (3, 6) is on the graph of y= 5f(2(x+3))-4 . Find the original point on the graph of y=f(x).

Answers

Answer:

(12, 2) is the original point on the graph of [tex]y=f(x)[/tex].

Step-by-step explanation:

Given:

[tex]y= 5f(2(x+3))-4[/tex] has a point (3, 6) on its graph.

To find:

Original point on graph [tex]y=f(x)[/tex] = ?.

Solution:

We are given that The point (3, 6) is on the graph of [tex]y= 5f(2(x+3))-4[/tex]

If we put x = 3 and y = 6 in [tex]y= 5f(2(x+3))-4[/tex], it will satisfy the equation.

Let us the put the values and observe:

[tex]6= 5f(2(3+3))-4\\\Rightarrow 6= 5f(2(6))-4\\\Rightarrow 6= 5f(12)-4\\\Rightarrow 6+4=5f(12)\\\Rightarrow 5f(12)= 6+4\\\Rightarrow 5f(12)= 10\\\Rightarrow f(12)= \dfrac{10}{5}\\\Rightarrow f(12)= 2\\OR\\\Rightarrow 2=f(12)[/tex]

Now, let us compare the above with the following:

[tex]y=f(x)[/tex]

we get y = 2 and x = 12

So, the original point on graph of [tex]y=f(x)[/tex] is (12, 2).

2. A line passes through the point (0,4).
The gradient of this line is 2.
Write down the equation of this line

Answers

Answer:

[tex]\boxed{y = 2x+4}[/tex]

Step-by-step explanation:

Gradient = m = 2

Y-intercept = b = 4 (Because here x = 0 as in the point (0,4))

So, the equation becomes

=> [tex]y = mx+b[/tex]

=> [tex]y = 2x+4[/tex]

Solve the system by graphing (Simplify your answer completely.)
Will someone please help me with this and give an explanation on how you got it? I don’t understand.

{x+y=8
{x-y=4

Answers

Answer:

(6,2)

Step-by-step explanation:

1) convert both equations  to slope intercept form:

y=-x+8

and

y=x-4

now graph both equations separately by intercepts:

x int:  0=-x+8

-8=-x

8=x

y int:  y=0+8

y=8

so the two coordinate points for first equation are (0,8) and (8,0)

lets move on two second equation: y=x-4

x int:  0=x-4

4=x

y int y=0-4

y=-4

so the 2 coordinate points are (4,0) and (0,4)

lets graph these two equations and see where they intersect:

(see graph below), the intersection is at (6,2) so (6,2) is our answer

hope this helps


QUESTION 2
Find Percent Increase:
The original price for a product is $53.93 and the sale's tax rate is 29%. Find the amount of tax and the total selling price. Round to the nearest cent.
A $15.64 and $69.57
B. $38.29 and 592.22
C. $15.64 and $38.29
D. $16.78 and $70.21

QUESTION 3
Find Future Value Using Simple Interest Formula:
Chad got a student loan for $10,000 at 8% annual simple interest. How much does he owe after two years?
A $12,800
B. $10,800
C. $11,600
D. $11,664

Answers

Answer:

QUESTION 2 -> Correct option: A.

QUESTION 3 -> Correct option: C.

Step-by-step explanation:

QUESTION 2

To find the amount of tax we just need to multiply the tax rate by the original price of the product:

[tex]Tax = 29\% * 53.93[/tex]

[tex]Tax = 0.29 * 53.93[/tex]

[tex]Tax =\$15.64[/tex]

Then, to find the total selling price, we need to sum the original price to the tax value:

[tex]Total = tax + price[/tex]

[tex]Total = 15.64 + 53.93[/tex]

[tex]Total = \$69.57[/tex]

Correct option: A.

QUESTION 3

To find the final value after 2 years, we can use the formula:

[tex]P = Po * (1 + r*t)[/tex]

Where P is the final value, Po is the inicial value, r is the interest and t is the amount of time. Then, we have that:

[tex]P = 10000 * (1 + 0.08 * 2)[/tex]

[tex]P = \$11600[/tex]

Correct option: C.

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = –6. Which function could Heather be writing? f(x) = x2 + 36x + 12 f(x) = x2 – 36x – 12 f(x) = –x2 + 12x + 36 f(x) = –x2 – 12x – 36

Answers

Answer:

  f(x) = –x^2 – 12x – 36

Step-by-step explanation:

The parent function, x^2, touches the x-axis at x=0. Translating it 6 units left replaces x with x-(-6) = x+6, so the function is ...

  f(x) = (x+6)^2 = x^2 +12x +36

Reflecting the graph across the x-axis doesn't change the x-intercept, so Heather could be writing ...

  f(x) = -x^2 -12x -36

It's D.

I have to have at least 20 characters.

what is the difference of rational expressions below 6x/x-3 - 5/x

Answers

Answer:

[tex]$ \frac{6x^2-5x+15 }{x^2-3x} $[/tex]

Step-by-step explanation:

[tex]$\frac{6x}{x-3} -\frac{5}{x} $[/tex]

[tex]$\frac{6x(x)}{x(x-3)} -\frac{5(x-3)}{x(x-3)} $[/tex]

[tex]$\frac{6x^2}{x^2-3x} -\frac{5x-15}{x^2-3x} $[/tex]

[tex]$ \frac{6x^2-5x+15 }{x^2-3x} $[/tex]

How many solutions does the system have? { y = − 3 x + 9 3 y = − 9 x + 9 ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ y=−3x+9 3y=−9x+9 ​

Answers

Answer:

no solutions

Step-by-step explanation:

y = − 3 x + 9

3 y = − 9 x + 9

Multiply the first equation  by -3

-3(y )=-3( − 3 x + 9)

-3y = 9x -27

3 y = − 9 x + 9

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

0 = 0 -18

0 = -18

This is never true so there are no solutions

Answer:

for kahn academy -- b -- ( no solutions)

Step-by-step explanation:

A rectangular prism made of wood has a length of 10 centimeters, a width of 8 centimeters, and a height of 12 centimeters. A rectangular hole
with a length of 2 centimeters and a width of 3 centimeters is cut through the prism as shown. What is the volume of the resulting figure?
3 cm
2 cm
12 cm
8 cm
10 cm

Answers

Answer: its B 888 cm

Step-by-step explanation: hope this helps let me know if wrong ill fix it

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