Mathematics College

find the value of x 4x + 3 = -5x + 21​

Find The Value Of X 4x + 3 = -5x + 21

Answers

Answer 1

4x + 3 = -5x + 21

9x + 3 = 21

9x = 18

x = 2

Hope this helps!! :)

Answer 2

Answer:

x=2

Step-by-step explanation:

4x + 3 = -5x + 21

add 5x on both sideswhich will get u to 9x +3 = 21subtract 3 from both sideswhich will get u to 9x = 18divide 9 from both sides and the answer is x = 2

Related Questions

What is 41687 rounded to the nearest Highest Place

Answers

Answer:

40,000

Step-by-step explanation:

please help with finding the midpoint

Answers

Answer: (-4, -6)

Step-by-step explanation:

Find the middle so find the averages of the x points and the y points

average of -6 and 2 is -4

average of -8 and -4 is -6

the point is (-4, -6)

A water tank is a cube of side 2m the depth of water in it is60cm. What is the volume of water in the tank?

Answers

Answer:

Step-by-step explanation:

The base is made of a square that is 2 meters by 2 meters.

Base = 4 m^2

The height of the water is 60 cm

60 cm// 100 cm/meter = 0.6 meters

Volume = Base * height

Base = 4m^2

height = 0.6 m

Volume = 4 * 0.6 = 2.4 m^3

find the approximate value of 2.49 and 2.98 when they are cubed​

Answers

[tex]\huge\fbox\orange{S} \huge\fbox\red{C}\huge\fbox\blue{R}\huge\fbox\green{O}\huge\fbox\gray{L}\huge\fbox\purple{L>}[/tex]

[tex]\huge\underline\mathtt\colorbox{cyan}{2.49 cubed=15.438249}[/tex]

[tex]\huge\underline\mathtt\colorbox{red}{2.98 cubed=26.463592}[/tex]

I have more questions to due after this

Answers

Answer:

a reflection over the line y=-x

Step-by-step explanation:

Like nobody is helpping me i been postting the same questions alot of time what are you doing yall want to to answer what yall want to answer i post the easy question that yall can and it ju0st like. who ever want to help there are questions on my page they are easy im telling you! 50 pts for who ever do and brainliest

Answers

Answer:

Sure if they are not too hard

Step-by-step explanation:


Ben can paint 280 square feet in 12 minutes. How many square feet can he paint in 1 hour?

Answers

Answer:

1400 sq. ft

Step-by-step explanation:

60 min = 1 hour

280 sq. ft / 12 min = x / 60 min

x = 60 min * (280 sq. ft / 12 min)

minuets cancel out

x = 1400 sq. ft

Find the volume of the prism.
3 cm
37 cm
5 cm

Answers

The answer to your question is 45

A rectangle prism has dimensions of 2 cm x 2 cm x 5 cm what is its surface area explain your reasoning

Answers

The surface area of a rectangle prism is 48cm²
The volume of a rectangle prism is 20 cm³
A rectangular prism is a three-dimensional shape with six faces and twelve sides.
Volume of a rectangle prism = length x width x height
2 x 2 x 5 = 20 cm³
Surface area of a rectangle prism = 2 ( lw + wh + lh)
Where:
l = length
w = width
h = height
Surface area = 2 x [ (2 + 2) + (2 x 5) + (2 x5) ]
=2 x (4 + 10 + 10)
= 2 x (24)
= 48 cm²

what number is in the Tenths place for 315.84

Answers

Answer:

The number in the tenths place is 8

Step-by-step explanation:

Answer:

8.

Step-by-step explanation:

The first number after the decimal represents the tenths place. 315.84 8 is right after the decimal so it's in the tenths place.

Hi ppl of brainly. I need some help with my math assignment. explain if u can (if u can't, that's okay ) if you dont know it. please dont answer it. if u have any questions about the question, please drop in a comment!

Answers

Answer:

17.156

Step-by-step explanation:

A rational number has has a terminating decimal expansion or a decimal expansion of non-terminating repeating digits. Here, the decimal expansion is terminating, so it is a rational number.

Answer:

C. 17.156

Step-by-step explanation:

A rational number is any number that can be expressed as a fraction. So for example, since [tex]\sqrt{2}[/tex] cant be expressed as a fraction, it isn't rational. A number like 1.25 on the other hand IS rational as it can be expressed as [tex]\frac{5}{4}[/tex] or [tex]\frac{125}{100}[/tex].

Option C can be expressed as [tex]\frac{17156}{1000}[/tex], so it must be rational.

- Note that if a number has a finite amount of digits after the decimal (ie it doesn't go on forever like option B), it can be represented as a fraction and thus is rational.

Solve for y in the equation x -4y = -4

Answers

Answer:

y = x/4 + 1

Step-by-step explanation:

x - 4y = -4

x + 4 = 4y

y = x/4 + 1

Answer:

1

Step-by-step explanation:

change to y=mx+b -> 4y=-x+4

divide 4 one the right side

y=4x+1

put zero one place of x

y=4(0)+1

y=0+1

y=1

I NEED A 100% ACCURATE ANSWER FOR THIS QUESTION ASAP NO LINKS !!!

Answers

Answer:

w= 8/7

Step-by-step explanation:

1. divide the numbers

[tex]12w-1*10=6-2w[/tex]

2. multiply the numbers

[tex]12-10=6-2w[/tex]

3. rearrange terms

[tex]12-10=-2w+6[/tex]

4. add 10 to both sides of the equation

[tex]12w-10+1-=-2w+6+10[/tex]

5. simplify

[tex]12w=-2w+16[/tex]

6. add 2w to both sides of the equation

[tex]12w+2w=-2w+16+2w[/tex]

7. simplify

[tex]14w=16[/tex]

8.divide both sides of the equation by the same term

14w/14 = 16/14

9. simplify

w = 8/7

Answer:

[tex]w = 2[/tex]

Step-by-step explanation:

[tex] \frac{(12w - 20)}{2} = 6 - 2w[/tex]

[tex]6w + \frac{ - 20}{2} = 6 - 2w[/tex]

[tex]6w + \frac{( - 10.2)}{(1.2)} = 6 - 2w[/tex]

[tex]6w + 10 = 6 - 2w[/tex]

[tex]6w - 10 + 2w = 6 - 2w + 2w[/tex]

[tex]6w + 2w - 10 = 6 - 2w + 2w[/tex]

[tex]8w - 10 = 6 - 2w + 2w[/tex]

[tex]8w - 10 = - 2w + 2w + 6[/tex]

[tex]8w - 10 = 6[/tex]

[tex]8w - 10 + 10 = 6 + 10[/tex]

[tex]8w = 6 + 10[/tex]

[tex]8w = 16[/tex]

[tex] \frac{8w}{8} = \frac{16}{8} [/tex]

[tex]w = \frac{16}{8} [/tex]

[tex]w = \frac{2.8}{1.8} [/tex]

[tex]w = 2[/tex]

[tex]Thank \: you!!![/tex]

A drilling machine can drill 12 holes in 6 minutes. If the machine drills holes at a constant speed, it can drill
holes in 25 minutes. HELPPP

Answers

Answer:

The machine can drill 50 holes in 25 minutes!

Explanation:  

6 by 4 is 24, which in this context will be 24 minutes. Therefore, multiply 12 by 4 to get the sum of 48. Then, to find the remaining 1 minute, divide 12 by 6 to get 2 which is the amount of holes per minute. Add 2 to 48 and that is your answer!  

what's the answer for this? CLASS 6 MATHS I NEED HELP ASAP!!!​

Answers

Answer:

20:

3 5/12 or 41/12

21:

-9 5/8 or -77/8

solve pls brailiest!

Answers

Answer:

73,if you need explanation then let me know, always happy to help anyone! btw if you could give me brainliest then that would be great, i also undestand if not because im not the first to answer so dont be shy and hit theirs with brainliest if you want! :))

Step-by-step explanation:

23 in. The perimeter of this quadrilateral is 100 in. What is the length of the side not given? 27 In. 32 in.​

Answers

Answer:

Solution:

The formula to find the perimeter of the quadrilateral = sum of the length of all the four sides.

Here the lengths of all the four sides are 5 cm, 7 cm, 9 cm and 11 cm.

Therefore, perimeter of quadrilateral = 5 cm + 7 cm + 9 cm + 11 cm

                                                     = 32 cm

A water tank is a cube of side 2m the depth of the water in it is 60cm. What is the volume of the water in the tank?

Answers

Answer:

8 METERS CUBES I THINK

Step-by-step explanation:

VOLUME IS LENGTH TIMES WIDTH TIMES HEIGHT

2 METERS TIMES 2 METERS TIMES 2 METERS IS 8 METERS

A square has a side lenght 9cm

Answers

Depends on its size.

Answer:

9cm

Step-by-step explanation:

A "square" always has an equal amount of length and height. If the length is 9cm then the height is also 9cm. a square is like a cube. All of its sides are equal.

-kiniwih426

I mark brainliest!! fill the table using the function rule, y=-10x+3

Answers

The answers are
13
3
-7
-47

I have to write something here to send a question)​

Answers

Answer:

how many children do you have?

Step-by-step explanation:

you said ask a question

.21 is what percent of $3.50

Answers

Answer:

6%

To find 6 percent of a number, multiply the number by 0.06. In this instance, 3.5 x 0.06 = 0.21, or twenty-one hundredths.

Step-by-step explanation:

Answer:

0.21 / 3.50 × 100%

= 21/350 × 100%

= 3/50×100%

= 3×2%

=6%

Step-by-step explanation:

brainliest plz

yeeeeeeeeeeeeetaco avatar
yeeeeeeeeeeeeetaco
05/08/2021
Mathematics
High School
answered
Alex has some marbles.
Billie has three times as many marbles are Alex.
Chris has 9 fewer marbles than Billie.
In total they have 68 marbles.
How many marbles does Alex have?

Answers

can you say me from which cource is this

Supposed the length of a rectangle is three times the width and the area is 300 ft.² then what is the width of the rectangle in feet

Answers

Step-by-step explanation:

the area is

A = length × width.

length = 3 × width

=>

A = 3 × width × width = 3 × width²

300 = 3 × width²

100 = width²

width = 10 ft

Multiply. Write your answer as a fraction in simplest form.
8
X
9

Answers

Answer:

40/54 = 20/27

Step-by-step explanation:

Multiply. Enter the product in simplest form.


7
9
×
4
7
=

Answers

Four ninths if it was supposed to be in fraction form

What is the sum of the roots of the quadratic equation x²+6x-14=0?​

Sum of Roots = ___ Product of Roots = ____​

Answers

Answer:

Sum of Roots = (-8) Product of Roots = (-84)

Step-by-step explanation:

[tex] {x}^{2} + 6x - 14 = 0[/tex]

Roots :- 6 and -14

Sum of the roots :

[6 + (-14)]

= (-8)//

Product of the roots :

[(6)(-14)]

= (-84)//

What are the similarities and differences between a histogram and a frequency table?

Answers

Answer:

A frequency distribution table lists the data values, as well as the number of times each value appears in the data set. A histogram is a display that indicates the frequency of specified ranges of continuous data values on a graph in the form of immediately adjacent bars.

Step-by-step explanation:

If Marie were to paint her living room alone, it would take 7 hours. Her sister Barbara could do the job in 8 hours. How many hours would it take them working together? Express your answer as a fraction reduced to lowest terms, if needed.

Answers

Answer:

[tex]\sf\longmapsto \: 3.73 hours [/tex]

Step-by-step explanation:

[tex]\sf\longmapsto \: \frac{1}{7 } + \frac{1}{8} [/tex]

[tex]\sf\longmapsto \: \frac{15}{56} [/tex]

Now, Reciprocal–

[tex]\sf\longmapsto \: \frac{56}{15} [/tex]

[tex]\sf\longmapsto \: 3.73 hours [/tex]

The time taken together Marie and his sister to paint the living room are 3.73 hours or 3 hours and 43.8 minutes.

What are work and time?

Work is the completion of any task for example if you have done your homework in 5 hours then you have done 5 hours.

Another illustration of labor is when you finish your meal in an hour, which means that you finished your work in an hour.

Given that,

Marie take 7 hours to paint

1 work → 7 hour

1 hour → (1/7) work

Barbara takes 8 hour

1 work → 8 hour

1 hour → (1/8) work

Let's suppose together they take x hour

1 work → x hour

1 hour → (1/x) work

Now,

1-hour work together = 1-hour work of Marie + 1-hour work of Barbara

(1/x) = (1/7) + (1/8)

(1/x) = (7 + 8)/56

x = 56/15

x = 3.73

x = 3 hour and 0.73 × 60 = 43.8 minutes.

Hence "The time taken together Marie and his sister to paint the living room is 3.73 hours or 3 hours and 43.8 minutes".

For more information about the work and time relation,

brainly.com/question/6912604

#SPJ2

What is 2+1000000000

Answers

Answer is 1000000002

Answer:

the answer

1000000002

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