If x = 7 and y = 4, then x + 2y =

If X = 7 And Y = 4, Then X + 2y =

Answers

Answer 1
15!

x + 2y = ?
(7) + 2(4) = ?
7 + 8 = 15
Answer 2

Given that if x = 7 and y = 4, the value of x + 2y = 15

Given the following:

x = 7

y = 4

Required:

Find the value of x + 2y.

Therefore, substitute x = 7 and y = 4 into the algebraic expression, x + 2y.

Thus, plug in the values into the expression:

(7) + 2(4) = 7 + 8

x + 2y = 15

Therefore, given that if x = 7 and y = 4, the value of x + 2y = 15

Learn more about algebraic expressions on:

https://brainly.com/question/12470265


Related Questions

Cheryl's famous pumpkin pie Seasoning consists of a blend of cinnamon, nutmeg and cloves. WHen cheryl mixes up a batch, she uses 200 ounces of cinnamon, 100 ounces of nutmeg, and 100 ounces of cloves. If cinnamon sells for $1.80 per ounce, nutmeg sells for $1.60 per ounce, and cloves sell for $1.40 per ounce, what should be the price per ounce of the mixture. math problem answer

Answers

Answer:

$1.65

Step-by-step explanation:

Given that:

Batch mixture :

Cinnamon - 200 ounces

Nutmeg - 100 ounces

Cloves - 100 ounces

Cost of Seasoning mix :

Cinnamon - 1.80 per ounce

Nutmeg - 1.60 per ounce

Cloves - 1.40 per ounce

Price per ounce of mixture :

Let the price per ounce of mixture = x

Total ounce of mixture = (100 + 100 + 200) = 400 ounces

Σ(ounce * cost) = total ounce * cost of mixture

(200*1.80)+(100*1.60)+(100*1.40) = 400 * x

$360 * $160 * $140 = 400x

$660 = 400x

x = $660 / 400

x = $1.65

Price per ounce of mixture = $1.65

Solve the Equation for f: -2/3f-4=10

50 Points

Answers

Answer:

f= -21

Step-by-step explanation:

please mark brainlliest if you want.

Answer:

F=-21

Step-by-step explanation:

-2/3f-4=10

Multiply both sides

-2f-12=30

Add 12 to 30

-2f=42

Divide by -2

F=-21

Logan wants to save 35% of his weekly paycheck he earns $125 a week how much does he plan to save each week enter the correct answer in the box

Answers

Answer:

35%

Step-by-step explanation:

Logan wants to save 35% of his weekly paycheck he earns $125 a week how much does he plan to save each week enter the correct answer in the box, he wants to save 35%, how much does he plan to save, 35% easy. JK its 125 - 81.25 which is $43.75.

43.75 each paycheck

Find the value of x, please help

Answers

12x and 8x form a linear pair, so the equation would be- 12x+8x=180
Then, combine like terms- 20x = 180.
Lastly, divide by 20 on both sides.
x=9

Answer:

x = 90 (verified answer) ✅

Step-by-step explanation:

There are 360° of measure in a quadrilateral. By the definition of a parallelogram, we know that the angle opposite the labeled angle will have the same measure as that labeled angle.

So, 12x + 12x + 8x + 8x = 360

Simplifying all the x's gives us:

40x = 360

Divide by 40

x = 90

Now, we check this

40 (90) = 360

360 = 360 ✅

The IRS was interested in the number of individual tax forms prepared by small accounting firms. The IRS randomly sampled 50 public accounting firms with 10 or fewer employees in the Dallas-Fort Worth area. The following frequency table reports the results of the study.
Number of Clients Frequency
25 up to 40 3
40 up to 55 11
55 up to 70 24
70 up to 85 8
85 up to 100 4
Estimate the mean and the standard deviation. Round squared deviations to the nearest whole number and the final answer to 2 decimal places.

Answers

Answer:

Estimates of the number of individual tax forms prepared by small accounting firms:

1. Mean = 10

2. Standard deviation = 7.56

Step-by-step explanation:

a) Data and Calculations:

Number of Clients     Frequency    Mean Diff   Squared Deviation

25 up to 40                       3                  -7                    49

40 up to 55                      11                     1                       1

55 up to 70                     24                  14                   196

70 up to 85                       8                    -2                     4

85 up to 100                     4                   -6                   36

Sum                               50                                       286

Mean of frequencies = 10 (50/5)                            57.2 (286/5)

Standard deviation = square root of 57.2 = 7.56

b) The IRS can obtain the mean value of the number of individual tax forms prepared by small accounting firms by dividing the sum of the frequencies by the numbers (50/5).  Similarly, the IRS can calculate the standard deviation of the number of individual tax forms prepared by small accounting firms, which measures how spread out the data is about the mean value, by working out the mean of the frequency numbers.  Then subtract the mean for each number and square each result.  Add up the squared differences and divide by the number to get the mean.  Finally, take the square root of the mean differences.

50 points and a BRAINLIEST if you answer correctly! Pls Pls help!

Answers

Answer:

3/10

Step-by-step explanation:

Numbers Given are:

1 1/2, 2 1/2, 1 2/3, and 2 5/6

The result at the end of all the math is 2 5/6.

1 2/3 + 2 5/6 = 4 1/2

Divide 4 1/2 by 1 2/3 to get 2 7/10.

Subtract 2 2/3 from 2 7/10 to get 1/5.

Multiply 1/5 by 1 1/2 to get 3/10.

So the number they thought of was 3/10.

Plss help

2 kg=_______g
2 kg=_______mm
1 km=_______m
2 km=_______m
1 L=________ml
2 L=_______ml
1 m=_______cm
2 m=_______cm​

Answers

Answer:

2000g

Step-by-step explanation:

the first one is 2000g!

FROM 1KG_1000G

SO

2KG=2000G

6(4 - 2р) + 9p
Can any one help

Answers

Answer:  p = 8

Step-by-step explanation:

6(4-2p)+9p

24 - 12p + 9p

24 - 3p

-3p = -24

3p = 24

p = 8

In a class of 23 students, 12 have a cat and 6 have a dog. There are 2 students who
have a cat and a dog. What is the probability that a student who has a cat also has a
dog?

Answers

Answer:

2/23

Step-by-step explanation:

I think it's because there's 2 students out of 23 students who have a cat and a dog. So, I'm assuming the answer is 2/23

Answer:

2/12

Step-by-step explanation:

List the factors of 95

Answers

1, 5, 19 and 95 are the factors of 95

Felicity the unicorn is in the forest. She is enjoying a delicious melon. A weasel grabs the melon out of her mouth and starts to devour it. Felicity notices that there are 19 pairs of eyes looking at the weasel. Based on the info you've been given, how many animals are in the forest right now? Type your answer in below!

Answers

Answer:

21 animals in the forest

Step-by-step explanation:

The weasel

Felicity

The 19 other animals

Hope this helped

3/4 + 2/3 using fractions ​

Answers

Step-by-step explanation:

Lowest common multiple (LCM) of 4 and 3 = 12.

Therefore 3/4 + 2/3

= 9/12 + 8/12

= 17/12 or 1 5/12.

Answer:

1 5/12

Step-by-step explanation:

To do this, we need to find the LCM of 4 and 3. The LCM of 4 and 3 is 12. Now, since 4x3 is 12, we multiply 3/4 by 3/3 to get 9/12. Now, we multiply 2/3 by 4/4 (since 3x4 is 12) to get 8/12. Now, we add only the top numbers to get 17/12. To simplify this, we divide 17 by 12 (check attached screenshot). The quotient (the answer) becomes the whole number, the divisor (12) becomes the denominator, and the remainder (5) becomes the numerator. This gets us 1 5/12.

>
The value of the expression 6x when x = 2 is​

Answers

Answer:

12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

6x means 6 times x so when you replace x with 2 you get 6×2= 12

plssssssssssssssssss help asap so am what part % of 18 is 24 it iis not 75

Answers

24

Percentage Calculator: 18 is what percent of 75? = 24.

find the volume of figure B. round your answer to two decimal places ​

Answers

Answer:

468.75 m³

Step-by-step explanation:

Figure A has volume of 30 m³

Figure B is similar to figure A and the scale factor is:

5/2 = 2.5

Volume is the product of  three dimensions, therefore the volume of B will be greater by:

2.5×2.5×2.5= 15.625  times than A

The volume of B is:

30*15.625 = 468.75 m³

what is 2 1/4 . 9/5?

Answers

Answer:

0.05

Step-by-step explanation:

Find x & y so that quadrilateral is a parallelogram. (Look at image)

Answers

Answer:

x = 5° y = 75

Step-by-step explanation:

Here given it is a quadrilateral

105° + y = 180° ( being co-interior angles)

y = 180° - 105°

y = 75°

Now

15x + 105° = 180° (being co-interior angles)

15x = 180° - 105°

15x = 75°

x = 75° / 15

x = 5°

Hope it will help :)❤

a submarine dives 20 meters each minute. what is the total change in depth after 10 minutes​

Answers

Answer: 200 Meters after 10 minutes.

Step-by-step explanation:

To find the answer you must multiply 20 for every minute.

Hope this helped :D

Tom can mow 5 lawns in 2 hours. How many lawns can he mow in 10 hours?

Answers

Answer:

25

Step-by-step explanation:

Answer:

25 lawns

Step-by-step explanation:

Since he can mow 5 lawns in 2 hours he can mow:

10 lawns in 4 hours

15 lawns in 6 hours

20 lawns in 8 hours

25 lawns in 10 hours

Hope this helps! It's a pattern! :D

divide -3x^3-4x^2+4x+3 by x-2

Answers

The answer is 7x-37 let me know if it is correct it should be

Answer: -3x^2-10x-16

Step-by-step explanation:

1. answer the three questions below about the quadrilateral:

a. How could we find the perimeter below about the quadrilateral?

b. How might we calculate the area of this figure?

c. It looks like it might be a rectangle. What can we do to help us decide if it's a rectangle or a parallelogram?​

Answers

Before we begin, note that we need to use the distanse formula for everything to reach our conclusion. With that being said, here we go:

[tex]\displaystyle \sqrt{[-x_1 + x_2]^2 + [-y_1 + y_2]^2} = d[/tex]

Using the ordered pairs [tex]\displaystyle [3, -3][/tex] and [tex]\displaystyle [4, -2][/tex] for instanse:

[tex]\displaystyle \sqrt{[-3 + 4]^2 + [3 - 2]^2} = \sqrt{1^2 + 1^2} = \sqrt{2}[/tex]

Now, sinse the distanse between [tex]\displaystyle [3, -3][/tex] and [tex]\displaystyle [4, -2][/tex] is [tex]\displaystyle \sqrt{2}[/tex] units, then the distanse between [tex]\displaystyle [1, 1][/tex] and [tex]\displaystyle [0, 0][/tex] ALSO has to be [tex]\displaystyle \sqrt{2}[/tex] units. By definition, lettre c has already been answered for you because sinse it is a rectangle, if the two short sides are congruent, then the two long sides ALSO have to be congruent, but just in case you want to be sure [you do not trust your instincts], just simply re-use the distanse formula.

Using the ordered pairs [tex]\displaystyle [1, 1][/tex] and [tex]\displaystyle [4, -2][/tex] for instanse:

[tex]\displaystyle \sqrt{[-1 + 4]^2 + [-1 - 2]^2} = \sqrt{3^2 + [-3]^2} = \sqrt{9 + 9} = \sqrt{18} = 3\sqrt{2}[/tex]

So there you have it. The length of both of the long sides is [tex]\displaystyle 3\sqrt{2}[/tex] units.

Now that we cleared all of that up, we can now find the perimetre and area of this rectangle:

[tex]\displaystyle 2w + 2l = P[/tex]

[tex]\displaystyle 2[\sqrt{2}] + 2[3\sqrt{2}] = 2\sqrt{2} + 6\sqrt{2} = 8\sqrt{2}[/tex]

The perimetre of this rectangle is [tex]\displaystyle 8\sqrt{2}[/tex] units.

[tex]\displaystyle wl = A[/tex]

[tex]\displaystyle [\sqrt{2}][3\sqrt{2}] = [3][2] = 6[/tex]

The area of this rectangle is [tex]\displaystyle 6[/tex] squared units.

You have now found what you were looking for.

** All rectangles are parallelograms because they both have two pairs of parallel and congruent sides, while vice versa is falce because a parallelogram does not have four congruent right angles, so it is safe to say that this is both a rectangle AND parallelogram, sinse the picture displayed is a rectangle.

I am joyous to assist you at any time. ☺️

9514 1404 393

Answer:

  a) compute and add up the side lengths

  b) multiply length by width

  c) compare the slopes of adjacent sides

Step-by-step explanation:

a) The perimeter of any figure is the sum of the lengths of its sides. It can be computed for a rectangle or parallelogram by adding the lengths of adjacent sides and multiplying the sum by 2.

In this graph, each grid square is 1/2 unit. The width of the rectangle is the diagonal of a square that is 1 unit on a side, so is √2 units. The length is 3 times that, so the perimeter is ...

  P = 2(L+W)

  P = 2(3√2 +√2) = 8√2 . . . . perimeter of the rectangle in units

__

b) The area is the product of the length and width.

  A = LW

  A = (3√2)(√2) = 6 . . . . area of the rectangle in square units

__

c) Each side lies on the diagonal of a unit square. The diagonals of a square are perpendicular, so the sides of this parallelogram are perpendicular. That means the figure is a rectangle.

The basic idea is to look at adjacent sides to see if they are perpendicular. Here, we have determined that using the properties of a square. One could compute "rise"/"run" for each side to see of the values are opposite reciprocals.

  origin to B: rise/run = 1/1 = 1

  B to C: rise/run = -3/3 = -1

Each of these values is the opposite reciprocal of the other: 1 = -1/-1.

_____

Additional comment

This question seems to be about methods, not about numbers. We have given numbers anyway.

Why is 2x 3/4 less than 2?

Answers

Answer & Step-by-step explanation:

It is less because 2 times 3/4 is the same as 2/1 times 3/4 which is 6/4 then simplify it and you get 3/2 which then is 1 1/2.

That is why 2 times 3/4 is less than 2.

Hope that helps ;)

Write an equation for the following table.

Answers

Answer:

y= 38x

Step-by-step explanation:

It is going up by 38 each time. There is no b value (y=mx + b), because if you times 6 by 38, you get 228. You don't need to add any remainders.

Please someone help me with this question...

Answers

Answer:

(❁´◡`❁)

Step-by-step explanation:

Suppose y varies directly as x. If x = 27 when y = 6, find x when y = 2.

Answers

0.22

Step-by-step explanation:

y=kx

6=27k6/27=kk=0.22

y=0.22*2y=0.44

What type of graph is this?

Answers

Answer:

The graph of a quadratic equation, or a parabola, looks like a U, an upside down U, a C, or a backwards C. We can use the following rules to determine what the graph of a given quadratic equation looks like. If y = ax2 + bx + c, and a is positive, then the graph of the equation is the shape of a U.

Step-by-step explanation:

bc

Write two polynomials whose difference is 6x+3. Then prove it.

Answers

Answer:

One possible pair:

7 x + 4   and  x + 1

Step-by-step explanation:

There are infinitely many pairs that meet this requirement.

Please mark me brainliest :D

If 1 yard=3 feet and 1 mile = 5,280 feet, how many yards are there in 5 miles

Answers

Answer:

There are 3520 yards in 2 miles

Answer:

There are 3520 yards in 2 miles

Step-by-step explanation:

Answer two questions about Equations A and B:
A. 5x = 20
B. x=4
1) How can we get Equation B from Equation A
Choose 1 answer:
A: Multiply/divide both sides by the same non-zero constant
B: Multiply/divide both sides by the same variable expression
C: Add/subtract the same quantity to/from both sides
D: Add/subtract a quantity to/from only one side
2: Based on the previous answer, are the equations equivalent? In other words, do they have the same solution?
A: Yes
B: No
PLS HELP

Answers

1) Choice A. We can divide both sides by 5 to solve for x.
2) Choice A, yes.
Let’s divide both sides of the equation by 5.

5x=20

5x/5 = 20/5

x = 4

The equations have the same solution, so they are equivalent

Let y=f(x) be a twice differentiable function such that f(1)=3 and dy/dx= (4y^2+7x^2)^1/2. What is the value of d2y/dx2 at x=1?

Answers

Answer:

[tex]\displaystyle f''(1) = \frac{7}{\sqrt{43}}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Point-Slope Form: y - y₁ = m(x - x₁)  

x₁ - x coordinate y₁ - y coordinate m - slope

Calculus

Derivatives

Derivative Notation

Taking Derivatives with respect to x

Basic Power Rule:

f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹

Chain Rule: [tex]\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)[/tex]

Step-by-step explanation:

Step 1: Define

Function: y = f(x), twice differentiable.

[tex]\displaystyle f(1) = 3\\\frac{dy}{dx} = (4y^2 + 7x^2)^{\frac{1}{2}}[/tex]

Step 2: Differentiate

Remember we are taking the derivative with respect to x.

Chain Rule [Basic Power Rule]:                                                                     [tex]\displaystyle \frac{d^2y}{dx^2} = \frac{1}{2}(4y^2 + 7x^2)^{\frac{1}{2} - 1} \cdot \frac{dy}{dx} (4y^2 + 7x^2)[/tex][2nd Derivative] Simplify:                                                                               [tex]\displaystyle \frac{d^2y}{dx^2} = \frac{1}{2}(4y^2 + 7x^2)^{-\frac{1}{2}} \cdot \frac{dy}{dx} (4y^2 + 7x^2)[/tex][2nd Derivative - Chain Rule] Basic Power Rule:                                         [tex]\displaystyle \frac{d^2y}{dx^2} = \frac{1}{2}(4y^2 + 7x^2)^{-\frac{1}{2}} \cdot (0 + 2 \cdot 7x^{2 - 1})[/tex][2nd Derivative] Simplify:                                                                               [tex]\displaystyle \frac{d^2y}{dx^2} = \frac{1}{2}(4y^2 + 7x^2)^{-\frac{1}{2}} \cdot 2 \cdot 7x[/tex][2nd Derivative] Simplify:                                                                               [tex]\displaystyle \frac{d^2y}{dx^2} = \frac{7x}{\sqrt{7x^2 + 4y^2}}[/tex]

Step 3: Evaluate

We are given x = 1 and f(1) = 3. This will tell us the instantaneous slope.

Substitute [2nd Deriv]:                     [tex]\displaystyle f''(1) = \frac{7(1)}{\sqrt{7(1)^2 + 4(3)^2}}[/tex][√Radical] Exponents:                     [tex]\displaystyle f''(1) = \frac{7(1)}{\sqrt{7(1) + 4(9)}}[/tex][Fraction] Multiply:                           [tex]\displaystyle f''(1) = \frac{7}{\sqrt{7 + 36}}[/tex][√Radical] Add:                               [tex]\displaystyle f''(1) = \frac{7}{\sqrt{43}}[/tex]

This tells us that the rate of change of the slope of the tangent line is [tex]\displaystyle \frac{7}{\sqrt{43}}[/tex].

We can also write an equation for the instantaneous slope:

[Equation] [tex]\displaystyle y - 3 = \frac{7}{\sqrt{43}}(x - 1)[/tex]

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