what is 5x – 9 + 2x – 4 = 9.4

Answers

Answer 1
Simplifying
5x + -9 = 38

Reorder the terms:
-9 + 5x = 38

Solving
-9 + 5x = 38

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '9' to each side of the equation.
-9 + 9 + 5x = 38 + 9

Combine like terms: -9 + 9 = 0
0 + 5x = 38 + 9
5x = 38 + 9

Combine like terms: 38 + 9 = 47
5x = 47

Divide each side by '5'.
x = 9.4

Simplifying
x = 9.4
Answer 2

Answer:3.2

Step-by-step explanation:

3.2 because x =16/5=3 1/5=3.2


Related Questions

3 ( x + 8) = ?



show work please!!

Answers

Answer:

Step-by-step explanation:

3(x + 8)

3x + 24

That's all I got. The image is so blurry that I am uncertain how to proceed.

If you are able to describe what the image says, I can definitely answer the question

Is this correct?? Please dont mine the little notes I took when solving it..

A= 12, base= 16

Area= (1/2)(12)(16) = 96

384+96 =480

Semi Circle should be something like =(1/2) pir^2

diameter= hypotenuse= sqrt(12^2 +16^2) = 20

radius= r= d/2= 20/2

Semi Circle= (1/2) pi 10^2= 50pi= 157.0796327

Total = 480+157.0796327=637.0796327. Rounding to the nearest hundred would give me 637.08??

Answers

Answer and Step-by-step explanation:

Yes, all of your calculations are correct!!

The area of one rectangle is 192, and since there are 2 rectangles, we multiply 192 by 2, which results in 384.

The area of a triangle is [tex]A = \frac{(Height)(Base)}{2}[/tex], which you got to be 96.

The Semi Circle would have half of the area of a circle, so you are correct when you multiply the equation by [tex]\frac{1}{2}[/tex].

To find that diameter, we need to use the Pythagorean Theorem.

[tex]12^{2} + 16^{2} = d^{2} \\\\144 + 256 = d^{2} \\\\400 = d^2\\\\d = 20[/tex]

So the diameter is 20, and the radius is 10 (20 divided by 2 = radius).

Plug that into the equation, and you get the answer to be [tex]50\pi[/tex], or 157.0796327.

157.0796327 + 384 + 96 = 637.08 (rounded to the nearest hundredth).

Good job!

#teamtrees #PAW (Plant And Water)

Find the volume of the figure below.

Answers

Answer:

I believe its 430?

Step-by-step explanation:

Layla is going to invest $5,200 and leave it in an account for 15 years. Assuming the interest is compounded monthly, what interest rate, to the nearest tenth of a percent, would be required in order for Layla to end up with $13,800?

Answers

Answer:

6.5%

Step-by-step explanation:

I just know

Solve for x. Round your answer to the nearest tenth (one decimal place).

Answers

Answer:

[tex]\displaystyle x \approx 6.7[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA[Right Triangles Only] cosθ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Define

Angle θ = 78°

Adjacent Leg = x

Hypotenuse = 32

Step 2: Solve for x

Substitute in variables [cosine]:                                                                       [tex]\displaystyle cos78^\circ = \frac{x}{32}[/tex][Multiplication Property of Equality] Multiply 32 on both sides:                    [tex]\displaystyle 32cos78^\circ = x[/tex]Rewrite:                                                                                                             [tex]\displaystyle x = 32cos78^\circ[/tex]Evaluate:                                                                                                           [tex]\displaystyle x = 6.65317[/tex]Round:                                                                                                               [tex]\displaystyle x \approx 6.7[/tex]

What is the IQR of:
44, 38, 51, 59, 53, 47, 52
i forget how to do iqr lol

Answers

Answer: 9

Step-by-step explanation:

PLEASE HELP
Find the solution to the system of equations.

You can use the interactive graph below to find the solution.

x= ____
y= ____

Answers

x=6 y=-4


Step: Solve

3
x

9
y
=
18
for x:

3
x

9
y
=
18

3
x

9
y
+
9
y
=
18
+
9
y
(Add 9y to both sides)

3
x
=
9
y
+
18

3
x

3
=
9
y
+
18

3
(Divide both sides by -3)
x
=

3
y

6

Step: Substitute

3
y

6
for
x
in
4
x
+
3
y
=
12
:
4
x
+
3
y
=
12
4
(

3
y

6
)
+
3
y
=
12

9
y

24
=
12
(Simplify both sides of the equation)

9
y

24
+
24
=
12
+
24
(Add 24 to both sides)

9
y
=
36

9
y

9
=
36

9
(Divide both sides by -9)
y
=

4

Step: Substitute

4
for
y
in
x
=

3
y

6
:
x
=

3
y

6
x
=
(

3
)
(

4
)

6
x
=
6
(Simplify both sides of the equation)

Answer:
x
=
6
and
y
=

4

Solve for x:
3x + 2 = 11
A.
11
5
B. 3
11
13
D.
13
3
E. 6

Answers

Answer:it is b

Step-by-step explanation:

When Ben does his math homework, he finishes 10 problems every 7 minutes. At this rate, how long will
it take him to complete 35 problems?lols please help.

Answers

Answer:

in 7 minutes he solve 10 problems

he solve one problem in = 7/10= 0.7 minute

he solve 35 problem in = 0.7x35= 24.5 minute

Step-by-step explanation:

hope it helps ❤️

Can someone please help me

Answers

Answer:

3. Add 11, then multiply by 3

4. Subtract 43, then multiply by 9

Step-by-step explanation:

Does that make sense?

Lila collected rain water for three days. On the first day she collected 23 liter of rain water. The last two days yielded 14 liter each how much did lila collect in all

Answers

Answer:

47 liter 14+14+23

Step-by-step explanation:

14+14+23=47

Answer:

the awnsers 51

Step-by-step explanation:

you do (14x2)=28+23=51

What is the reciprocal of 1/x^3

Answers

Answer:

x^3

Step-by-step explanation:

reciprocal is 1/(given value)

1/(1/x^3)

=x^3

Help please. Question below.

Answers

The answer is to your question is x^2 - 8x

I had 3 apples. I add 2 more apples. How many apples do I have?

Answers

Answer:

5 lol

Step-by-step explanation:

Answer:

5 im so smart :)

Step-by-step explanation:

X-15>-20
Please help first answer gets brainliest

Answers

Answer:

x > -5

Step-by-step explanation:

hope this helps :)

Answer:

x>-5

Step-by-step explanation:

X-15>-20

Add 15 to both sides;

x-15+15=>-20+15

simplify

x>-5

Hope this helped!

Helped by none other than the #QUEEN herself  aka # DrippQueenMo

A graph of a system of two equations is shown. HELP!!!!!

Answers

Answer:

8 and 2

Step-by-step explanation:

8 and 2 because y=5x +3 would be 5+3 which is 8 and y= 3x - 1 would be 3 - 1 which equals 2.

Which answer is correct??

Answers

Answer:

8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

y

2

−3=1

1

2

y+−3=1

1

2

y−3=1

Step 2: Add 3 to both sides.

1

2

y−3+3=1+3

1

2

y=4

Step 3: Multiply both sides by 2.

2*(

1

2

y)=(2)*(4)

y=8

Answer:

C.

Step-by-step explanation:

Replace y with each value.

If y is 2 then the answer would be -2

If y is 4 then the answer would be -1

If y is 8:

8/2 = 4

4-3 = 1

Please mark brainliest if this answer helped.

Happy Learning!

Please I need help ASAP 40. Points

Answers

Total owed = starting amount x( 1 + interest rate) ^ time

The equation would be total = 550(1.12)^x where x is the number of months.

Replace total with 550x2 = 1100 and solve for x

It will double in 6.11 months. Round to 6 months

explain why conductivity is a good measure of the salinity of water?​

Answers

Answer:

Salinity and conductivity measure the water's ability to conduct electricity, which provides a measure of what is dissolved in water. In the SWMP data, a higher conductivity value indicates that there are more chemicals dissolved in the water.

Step-by-step explanation:

Simplify by combining like terms: -5x - 13 + 7y + 26x

Answers

Answer  

21 x + 7 y − 13

Step-by-step explanation:

Just simplefly

find the perimeter of the figure

Answers

Answer:

the perimeter is 97 cm

Step-by-step explanation:

we find this by adding the lengths of all the sides

Answer:

10+3+3+33+33+15=97

Step-by-step explanation:

The sum of 10 and twice a number
(an equation)

Answers

Answer:

10+2x= the sum (anything could be put here)

Step-by-step explanation:

Well sum is automatically addition

Doubleing a number is basically multiplying it by 2

so

10+2x= whatever youw ant to put here

What is the surface area of the victory podium shown here? Include all surfaces of the podium, including the bottom. A. 61.5 square feet B. 61.75 square feet C. 65.25 square feet D. 69 square feet

Answers

Answer:

69

Step-by-step explanation:

the formula is 2( base x height) + 2 (base x width) + 2( height x width)

do that for top rectangle and bottom and add them together

Answer:

65.25 square feet.

the bathrrom tiles are square with a length of 10cm find tge area of such tile​

Answers

Answer: 100

Step-by-step explanation:

Some one help me please I’m struggling with 1-2 how do I work it out

Answers

To find volume do bxh =V

A jar contains only pennies, nickels, dimes, and quarters. There are 29
pennies, 14 dimes, and 20 quarters. The rest of the coins are nickels. There are 88 coins in all
How many of the coins are not nickels? If n represents the number of nickels in the jar, what
equation could you use to find n?

Answers

Answer:

addition I think addition or division

Find the surface area of this prism.
Round to the nearest tenth.

Answers

Answer:

The answer is 493.3

Step-by-step explanation:

6.72 x 12.7 x 5.78 = 493.28872

And 493.28872 rounded to the nearest tenth is 493.3 because the original number in the tenth place is 2 and then the digit before that is 8 which in this case is your rounding digit. Round up If the number is greater than 5 and round down if its less than 5. In this case its greater than 5 to that leaves you with 28 so now you have 493.28, 28 rounded to the nearest tenth is 30 and just take the 0 away, as if it didn't exist.

The surface area of the prism is 395 square centimeter.

What is volume?

Volume is a collection of two - dimensional points enclosed by a single dimensional line. Mathematically, we can write volume as -

V = ∫∫∫ F(x, y, z) dx dy dz

Given is to fins the surface area of the prism given below.

The given prism is a cuboid. We can write the surface area of the cuboid as -

V = 2(LB + BH + LH)

V = 2(12.7 x 5.78 + 5.78 x 6.72 + 12.7  x 6.72)

V = 2(73.4 + 38.8 + 85.344)

V = 395 square centimeter

Therefore, the surface area of the prism is 395 square centimeter.

To solve more questions on Prisms, visit the link-

https://brainly.com/question/22147194

#SPJ2

621.72 round to the nearest whole number

Answers

Answer:

622

Step-by-step explanation:

Please mark brainliest

Answer:

Hi! The answer to your question is 622

Step-by-step explanation:

☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆

☆Brainliest is greatly appreciated!☆

Hope this helps!!

- Brooklynn Deka

What is an equation of the line that passes through the point (- 2, 7) and is perpendicular to the line x - 4y = 24 ? Pls help

Answers

Answer: y=4x-1

Step-by-step explanation: the line goes through (-2,7) and is perpendicular to the line x-4y =24

Use the distributive property to simplify each expression.
(-5d + 1) (-2)

Answers

Answer: 10d-2

Step-by-step explanation:

Answer:

10d - 2

Step-by-step explanation:

Multiply each term inside parentheses by -2, separately:

10d - 2 (answer)

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