Solve this equation 2/4x- 1/5x=x-1

Answers

Answer 1

Answer:

x = -10/7

Step-by-step explanation:

Assume that you meant (2/4)x - (1/5)x = x - 1.  The parentheses are important for clarity.  

Start the solution by combining the x terms.  Note that the LCD here is 20, and that the problem thus becomes

                                        (10/20)x - (4/20)x = x - 1

This simplifies to                     (6/20)x = x - 1, or

                                                  (3/10)x = x - 1

Note that 'x' = '10/10x', and so    (3/10)x = (10/10)x - 1, or

                                                       -1         =    (7/10)x

Multiplying both sides by 10, we get 7x = -10, and therefore x = -10/7


Related Questions

Urgent helps bxjdidjdjjfjdhhdhdh

Answers

Answer:

l=40

Step-by-step explanation:

The area is calculated as

A = wl

1200=30l

1200/30=l

40=l

how do i find the lateral area.

Answers

Answer:

lateral surface area(As)=2πrh or

=PH

Step-by-step explanation:

hope this helps :)

For the following right triangle, find the side length x. Round your answer to the nearest hundredth. X, 18, and 10

Answers

Answer:

152

Step-by-step explanation:

All segments in a triangle add to 180. 1

8+10+x=180

x=152

The length x using Pythagoras theorem is 15 unit.

What is Pythagoras theorem?

According to the Pythagorean theorem, the square of the hypotenuse of a right triangle equals the sum of the squares of the other two sides.

Given:

Hypotenuse = 18 unit

Perpendicular = 10 unit

using Pythagoras theorem

H² = P² + B²

18² = 10² + B²

324 = 100 + B²

324 - 100 = B²

B² = 224

B= 14.966 unit

B= 15 unit

Thus, the measure for x is 15 unit.

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help asap!!!!!!!! i’ll mark as brainlist

Answers

Answer:

c and d

Step-by-step explanation:

3. Sam has a total of 22 quarters and nickels. The coins total value is $2.90. How many quarters and nickels does he have?​

Answers

Answer:

13 Nickels and 9 Quarters

Step-by-step explanation:

9 Quarters gives you $2.25

13 Nickels gives you $.65

add both totals and you get $2.90

answer?? please?? answer.

Answers

Answer:

1=65+72

=137 degrees,,,




James wants to draw a line diagonally across a rectangular piece of paper. If the paper measures 9 inches by 12 inches, what
is the minimum length of the straight edge he needs to make the line?
15 inches
21 inches
3 inches
108 inches

Answers

I think it is B thinks for the time

3x + 2 6x - 20 Enter​

Answers

Answer:

=3x+26x-20

=29x-20

Hope this helps! have a great day ahead! :D

Answer:

= 29x-20

Step-by-step explanation:

= 3x + 2 6x - 20

= 29x-20

Hope this answer helps you :)

Have a great day

Mark brainliest

What is the volume of a cone that has a height of 10 feet and a base with a surface area(B) of 9 square feet?

Answers

Answer:

30 cubic feet

Step-by-step explanation:

According to the scenario, calculation of the given data are as follows,

Height of cone (h) = 10 feet

Base surface area = π[tex]r^{2}[/tex] =  9 sq. feet

So we can calculate the volume of cone by using following formula,

volume of cone = (1/3)π[tex]r^{2}[/tex]h

By putting the value in the formula, we get

Volume of cone = (1/3) 9 × 10

= 3 × 10

= 30 cubic feet

so what is 1.025 as a percent?

Answers

Answer:

1.025%

Step-by-step explanation:

1.025 / 100 = 1.025%

Hope this helps

what is the value of 2 X ?​

Answers

1/2 .. i think that

Which of the following is a rational number but not an integer?

74, 3/10, -25, or 170

Answers

Answer:

3/10

Step-by-step explanation:

As,

Integers includes whole numbers, and negative of the whole numbers.

And Rationals includes every fraction, Integers and negative fraction.

So,

170, -25, and 74 are both Integers and Rationals.

But,

Only 3/10 is a fraction included only in rationals and not in Integers

use the given circle to find the values of x, y and z​

Answers

Answer:

x=10 y=90 z=20

Step-by-step explanation:

sarah read 20% of a book that was 150 pages long. how many pages did sarah read?​

Answers

Sarah read 30 pages of the book

Sarah read 30 pages..

Which relation is a function?
A. (8,-4), (8,4), (6,-3), (6,3), (0, 0)
B. (4, 7), (8,5), (6,4), (5, 3), (4, 2)
C. (0, 0), (1, 1), (2, 2), (3, 3), (4,7)
D. (0, 0). (1, 0), (1, 1), (2, 1), (1, 2)​

Answers

To determine which relation is a function, we need to check if each input value (x) corresponds to a unique output value (y). If there is any repetition in the x-values, then it is not a function. in option (0, 0), (1, 1), (2, 2), (3, 3), (4,7) no repetition x-values so c is correct.

Let's analyze each option:

A. (8,-4), (8,4), (6,-3), (6,3), (0, 0)

In this relation, we can see that both 8 and 6 have repeated as x-values. Therefore, option A is not a function.

B. (4, 7), (8,5), (6,4), (5, 3), (4, 2)

Again, we notice that 4 appears twice as an x-value. Hence, option B is not a function.

C. (0, 0), (1, 1), (2, 2), (3, 3), (4,7)

Here, each x-value is unique. No repetition is observed. Therefore, option C represents a function.

D. (0, 0). (1, 0), (1, 1), (2, 1), (1, 2)

In this relation, the x-value of 1 appears three times. Consequently, option D is not a function.

To summarize, option C is the only relation that represents a function since it has distinct x-values corresponding to unique y-values.

Option C is correct answer

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Find the area of this semi-circle with diameter 18
Give your answer rounded to 2 DP.

Answers

Step-by-step explanation:

diameter(d): 18

radius(r): 18 ÷ 2 = 9

area of a semi-circle:

[tex]\frac{\pi {r}^{2}}{2}[/tex]

[tex]= \frac{\pi \times 9 \times 9}{2} = 127.23[/tex]

please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

Answer:

1809.6

Step-by-step explanation:

Volume of a cylinder

V= pie* r ^2*h

Answer:

v = 1,809.56

Step-by-step explanation:

Formula=

V = Pi (3.14) r^2 h

pi 6^2·16

Por favor ayudenme con explicacion

Answers

Answer:

NA

a = 53

Step-by-step explanation:

A bisector creates two equal angles. Set them equal to each other.

5a - 160 = 2a - 1  ( subtract 2a from both sides)

3a = 159               (add 159 to both sides)

a = 53                   (divide by 3)

Determine the intercepts of the line
y= 4x + 7

x-intercept: (____,___)
y-intercept: (____,___)

Answers

[tex] \huge\mathfrak{ \underline{Answer : }}[/tex]

The equation of line is

[tex] \hookrightarrow \: y= 4x + 7 [/tex]

let's plug the value of " x as 0 " to find the coordinate of y at the " x - intercept "

[tex]y = 4x + 7[/tex]

[tex]y = (4 \times0 ) + 7[/tex]

[tex]y = 7[/tex]

therefore, the coordinates of x- intercept are :

[tex] \large \boxed{(0,7)}[/tex]

now, let's plug the value of " y as 0 " to find the coordinate of x at the " y - intercept "

[tex]y = 4x + 7[/tex]

[tex]4x + 7 = 0[/tex]

[tex]4x = - 7[/tex]

[tex]x = \dfrac{ - 7}{4} [/tex]

therefore, the coordinates of y - intercept are :

[tex] \boxed{ \bigg( \frac{ - 7}{4} ,0 \bigg)}[/tex]

___________________________________

[tex] \mathrm{✌TeeNForeveR✌}[/tex]

Please help me solve this!​

Answers

the answer would because its 118

Which represents the explicit formula for the arithmetic sequence on = 7 - 3(n - 1) in function form?
f(n) = 3n - 6
B f(n) = -3n - 6
f(n) = 3n - 10
D f(n) = -3n + 10

Answers

Answer:

Step-by-step explanation:

All this question is asking you to do is distribute through the parenthesis to simplify. Doing that gives us

f(n) = 7 - 3n + 3 and

f(n) = 10 - 3n or

f(n) = -3n + 10, choice D.

The representation of the function of the given arithmetic sequence 7 - 3(n - 1) is f(n) = -3n + 10 thus option (D) is correct.

What is a function?

An arrangement known as a function connects inputs to essentially one output.

The machine may only produce one output for each input and will only accept inputs that are specifically listed as part of the function's domain.

As per the given,

a_n = 7 - 3(n - 1)

f(n) = 7 - 3n + 3

f(n) = -3n + 10

Hence "The representation of the function of the given arithmetic sequence 7 - 3(n - 1) is f(n) = -3n + 10".

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Tamsen pays $12.50 of her monthly life insurance premium, and her
employer covers the rest. If her monthly premium is $42.25, what is the
annual value to Tamsen of this benefit?
A. $150
B. $357
C. $507
D. $328.50

Answers

Benefit she gets monthly is = 42.25-12.5= 29.75

annual value to Tamsen of this benefit= 12×29.75 = 357$

The input or values that you could put into an expression or
equation.

Answers

Answer: Domain

Step-by-step explanation: I just did this question, and got it correct by putting domain.

The input or values that you could put into an expression or

equation is called a Domain

What is range and domain of  a function?

Domain is set of values in a function . The range of the function is the set of values that the function assume .

Since , domain refers to the set of possible input values , it consists of all the input values shown on the x axis .

The input or values that you could put into an expression or

equation is called a Domain

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How many t-shirts did the company purchase if their total cost was $100? Explain how you found your answer.

Answers

16 t-shirts

because the rate is $6.25
$100/$6.25 =16

Hope this helps ;)

púa uses 6 cups of sugar too make 8 pies , at that rate how much sugar will it take too make 12 pies

Answers

Answer:

9

Step-by-step explanation:

for every pie pua needs 3/4 cups of sugar

you can know this by dividing the sugar by the pies

then you can multiply 12 by 3/4 to find how many cups are needed for 12 pies, which is 9

Answer:

9

Step-by-step explanation:

6 devided by 2 is three

8 divided by two is four

four times three makes the amount of pies you need

since you are making the times the new numbers amount, then you need to multiply the amount of sugar that you just devided by two by three

Ravi bought 3 pens and 4 notebooks for $28. Lola bought 4 pens and 8
notebooks at the same store for $52. How much does one notebook cost?

Answers

Answer:

5.50 Each

Step-by-step explanation:

Answer:

Step-by-step explanation:

3P + 4N = 28

6P+ 8N = 56

4P +8N  52

2P     = 4

P = 4/2 = 2  = $2

3(2)+4N = 28

4N = 28-6=22

N = 22/4 = 5.5= $5.50= cost of one notebook

please help me on thiss

Answers

Answer:

-1.2

Step-by-step explanation:

3n + 5 = 1/2(11n + 16)

3n + 5 = 5.5n + 8

5 = 2.5n + 8

-3 = 2.5n

-3/2.5 = n

-1.2 = n

Hope this helps!

Answer:

[tex]n=-1.2[/tex]

Step-by-step explanation:

First, solve both sides of the equation:

[tex]3n+5=\frac{1}{2} (11n+16)[/tex]

[tex]3n+5=(\frac{1}{2} )(11n)+(\frac{1}{2} )(16)[/tex] (Distribute)

[tex]3n+5=\frac{11}{2} n+8[/tex]

Then, subtract 11/2 n from both sides:

[tex]3n+5-\frac{11}{2}n=\frac{11}{2} n+8-\frac{11}{2} n[/tex]

[tex]\frac{-5}{2}n+5=8[/tex]

Now, subtract 5 from both the sides:

[tex]\frac{-5}{2} +5-5=8-5[/tex]

[tex]\frac{-5}{2} n=3[/tex]

For the last step, multiply both the sides by 2 / -5

[tex](\frac{2}{-5} )*(\frac{-5}{2} )=(\frac{2}{-5} )*(3)[/tex]

[tex]n=\frac{-6}{5}[/tex]

Convert it to decimal:

[tex]n=-1.2[/tex]

What is the average rate of change for this exponential function for the interval from x = 7 to x = 8?

Answers

Answer:

4374

Step-by-step explanation:

Since, we are given table for x and y values

and table for average rate of changes

we can see the pattern of average rate of change

average rate of change for 5 to 6 is three times average rate of change for 4 to 5

but we have to find

average rate of change for 7 to 8

so, using same pattern

average rate of change for 6 to 7 is three times average rate of change for 5 to 6

average rate of change for 7 to 8 is 3*3( average rate of change for 5 to 6)

so, we can plug value

average rate of change for 7 to 8 is 3*3*486

average rate of change for 7 to 8 is 4374

which expression represents the phrase eight time the difference of n and two?

A.8n-2
B.8(n-2)
C.8 x n x2
D.(8-n) x 2

Answers

Answer:

8(n-2)

Step-by-step explanation:

Difference means subtraction

Times is multiply

First find the difference of n and 2

(n-2)

Then multiply by 8

8(n-2)

the answer is B. 8(n-2)

Which equation can be used to solve for xxx in the following diagram?




Choose 1 answer:
Choose 1 answer:

(Choice A)
A
3x + 80 + 2x =903x+80+2x=903, x, plus, 80, plus, 2, x, equals, 90

(Choice B, Checked)
B
80 - 3x - 2x = 9080−3x−2x=9080, minus, 3, x, minus, 2, x, equals, 90

(Choice C)
C
3x + 80 + 2x = 1803x+80+2x=1803, x, plus, 80, plus, 2, x, equals, 180

(Choice D)
D
3x + 2x = 803x+2x=80

Answers

Geometry

C would be the answer because the angles added up together is 180 degrees, meaning that this is a three-way supplementary angle.

The required expression that represents a correct solution for the angle problem given in the figure is 3x + 80° + 2x = 180°. Option C is correct.

Given that,
A figure is shown, Describing the proportion of angle.
A solution-giving equation is to be determined.

What is the angle?

The angle can be defined as the one line inclined over another line.

What are functions?

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Since In the figure, we have seen three proportions of the angle.
Now the sum of the angle on the is 180, So,


3x +80 +2x = 180 - - - - (1)

The above equation  is the required expression for the figure
and the solution is,m
5x +80 = 180
5x = 180 - 80
x = 100 / 5
x = 20
now
2x = 2 * 20 = 40 ; 3x = 3*20 = 60
When putting the above values in equation 1 we get
180 = 180,

Thus, the required expression that represents a correct solution for the angle problem given in the figure is 3x + 80° + 2x = 180°. Option C is correct.

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