15-2.5x=40 which is the correct first step to solve the liner equation

Answers

Answer 1

Answer:

subtract 15 from both sides if you're solving for x

Answer 2

The first step should be subtracting 15 from both side.

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. Every mathematical equation has the formula L.H.S = R.H.S.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given equation:

15-2.5x=40

Now, to solve for x the first step should be subtracting 15 from both side

15 - 2.5x - 15 = 40- 15

-2.5x = 25

Now, divide by (-2.5) from both side

-2.5x / (-2.5)= 25/(-2.5)

x= -10

Hence, the first step should be subtracting 15 from both side.

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Related Questions

I WILL MARK BRAINLYEST PLZ HELP IM BEING TIMED!!!!!
Triangle 1 is transformed onto triangle 2 in the graph below.
On a coordinate plane, triangle 1 is rotated to form triangle 2.
Which statement about the transformation is true?
The transformation is a reflection because triangle 2 is a flip of triangle 1.
The transformation is a dilation because triangle 2 is a different size than triangle 1.
The transformation is a vertical translation because triangle 1 slid vertically.
The transformation is a rotation because triangle 2 is a quarter-turn of triangle 1.

Answers

Answer:

c or d

Step-by-step explanation:

If line segment AB represents 50​%, what is the length of a line segment that is​ 100%?

Answers

keekiwnssbsidbsisbssjsbsubsisbsisvsisbsisbsusb
PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.

Did you ever get the answers ?

Answers

Answer:

of what??????????????????

Answer:

what do you mean???

What is the slope of the equation 4x-5y=0?

Answers

Answer:

45

Step-by-step explanation:

Which is the word in English
that has nine letters and
remains a word at each step
even when you remove one
letter from it, right up to a
single letter remaining. List
each letter as you remove
them, along with the resulting
word at each step.

Answers

Answer:

startling

Step by step:

remove the l, and the word becomes: starting

remove one t, and the word becomes: staring

remove the a, and the word becomes: string

remove the r, and the word becomes: sting

remove the other t, and the word becomes: sing

remove the g, and the word becomes: sin

remove the s, and the word becomes: in

remove the n, and the word becomes: I

what is "18 less than the quotient of a number and -5 is at most -2" translated ​

Answers

Answer:

[tex]x\le -80[/tex]

Step-by-step explanation:

The given statement is "18 less than the quotient of a number and -5 is at most -2",

Let the number be x.

At most means, a ≤ b

So,

[tex]\dfrac{x}{-5}-18\le-2[/tex]

Adding 18 to both sides.

[tex]\dfrac{x}{-5}-18+18\le-2+18\\\\\dfrac{x}{-5}\le16[/tex]

Multiply both sides by -5

[tex]\dfrac{x}{-5}\times -5\le 16\times -5\\\\x\le -80[/tex]

So, the solution of the given statement is x is less than equal to -80.

What are the variables in the expression 2w + 11t + 4y

Answers

They are T, W, and Y

what is a polynomial​

Answers

Answer: Polynomials are algebraic expressions that consist of variables and coefficients.

Step-by-step explanation:

Answer:

an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).

Step-by-step explanation:

To be able to go on a trip to South America, Salma decides to save for 2 years. She opens a savings account with $700 . The account pays simple interest at an annual rate of 5% . She doesn't make any more deposits.

(a) How much total interest will Salma earn?

(b) What will the total amount in the account be (including interest)?

Answers

Answer:

(a) I'm pretty sure it's $71.75

(b) the total would be $771.75 if i calculated it right...

Please help me out with this one

Answers

Answer:

The slope of the line = m = 3

Step-by-step explanation:

Given the table

x           3          6            8           12

y           7          16          22          34

Taking any two points let say (3, 7) and (6, 16)

(x₁, y₁) = (3, 7) (x₂, y₂) = (6, 16)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]  

                 =  [16 - 7] / [6 - 3]

                  = 9 / 3

                 = 3

Therefore, the slope of the line = m = 3

Which of the following statements is true?

Answers

Answer:

Weight depends on the amount of gravity.

Step-by-step explanation:

Unlike mass, which remains constant, weight depends on the force of gravity that is exerted on it.

Find the geometric mean 9 and 25

Answers

Answer:

Geometric mean = 15

Step-by-step explanation:

Geometric mean is square root of both numbers product.

9×25=225

√225=15

When graphing and using the slope-intercept equation, the slope top number tells us to do what? and the bottom number tells us to do what?

Answers

Answer:

Rise over Run

Step-by-step explanation:

The slope and y-intercept values indicate characteristics of the relationship between the two variables x and y. The slope indicates the rate of change in y per unit change in x. The y-intercept indicates the y-value when the x-value is 0.

A car that Sophia wants to buy costs $21,000. She does research and finds that after 14 years the car depreciates to a value of zero. If the car depreciates in straight line form, write the straight line depreciation equation.

Answers

Answer:

y=-1500x + 21000

Step-by-step explanation:

I =PRT

I = interest

P = principal

R = interest rate%

T = time

The straight-line depreciation equation would be; y=-1500x + 21000

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Given that car that Sophia wants to buy costs $21,000. She does research that after 14 years the car depreciates to a value of zero.

The standard exponential equation is [tex]y = a(1-r)^t[/tex]

r is the rate

t is the time

a is the initial value

Given the following;

r = 12% = 0.12

t = 14 years

a = $21000

Substitute;

y = 21000(1 -0.12)^14

y = $1500

Therefore, the straight-line depreciation equation would be;

y=-1500x + 21000

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which expression is equivalent to (4") - 3?
A(4 + 4 + 4) - 3
B(4.4.4) - 3
C(3.3.3.3) - 3
D (3+3+3 + 3) - 3

The value is 48 points

Answers

Answer:

3+3+3+3

Step-by-step explanation:

it's ans is 3+3+3

Answer:

I think the answer is D.

sorry if I'm wrong..

Decide which shipping box (or combination of boxes) she should use to ship exactly 270 necklaces.

Answers

Ndnsnkskaoaoamdmsksakaopssppskdkxm

expand this bracket (x + 3/2)^2

Answers

X^2 + 9/4 is your answer

Hope this helps you

the answer is x^2 + 3x + 9/4

PLS HELP HUMAN I LOVE YALL HELP

Answers

The answer is b
Plz mark me as Brainly
your answer would most likely be B my love! good luck

What are the zeroes of f(x)=(2x+3)(x-5)?

Answers

———————————————————a

Answer:

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

Step-by-step explanation:

The zeroes of a function are the x values of the points at which the graph intersects the x-axis. All points on the x-axis have a y-value of 0, therefore, we need to find out which values of x can be plugged in to have the result be 0. This function is already factored out. So, for each expression, find which input of x makes the result equal 0.

1) So, start with 2x + 3. Set it equal to 0 and solve for x:

[tex]2x + 3 = 0\\2x = -3\\x = -\frac{3}{2} \\[/tex]

Therefore, [tex]-\frac{3}{2}[/tex] is one of the zeroes.

2) Next, set x-5 equal to 0 and solve, too:

[tex]x - 5 = 0 \\x = 5 \\[/tex]

Therefore, 5 is one of the zeroes.

3) Thus, the zeroes are [tex]-\frac{3}{2}[/tex] and 5.

Simplify this for me please. No improper answer.
People keep telling it's easy peasy lemon squeezy but me here sitting stressy depressy lemon zesty.

Answers

Answer:

Look at the picture below

Step-by-step explanation:

Answer: Stressy lessty lemon zessty ask for a tutor he/she can help you

The slope of the line below is -3. Use the coordinates of the labeled point to
find a point-slope equation of the line.

Answers

Answer: y+7= 3(x-5) C

Step-by-step explanation:

PLS HELP ITS TIMED..

Answers

Answer:

1. The judge should set a reasonable bail

2. All women

Step-by-step explanation:

Answer:

11. C. Maria should be allowed to call witnesses to support her innocence.

12. C. All women

Step-by-step explanation:

11. If she's pleading not guilty then she should have the right to get a witness.

12. This is the 19th amendment that granted women the right to vote.

someone wanna heelpp!!!!!

Answers

Answer:

95

Step-by-step explanation: is the answer

77 is 56% of what number Show your work for brainliest

Answers

Well, 77% of 56 = 137.50

Mike made 5/6 of his free throw attempts and Lisa made 7/9 of her free throw attempts. Choose two fractions that show 5/6 and 7/9 written with a common denominator.
A. 10/18
B. 14/18
C. 15/18
D. 27/36
E. 30/36

(This is multiple choice)

Answers

Answer:

B and C

Step-by-step explanation:

First you have to find a common denominator which would be 18. Then you need to multiply the denominators to get to 18. 6x3 and 9x2. Now whatever you do to the bottom you have to do to the top. So you would mutiply 5x3 and 7x2. The fractions you are left with are, 14/18 and 15/18.

To solve the problem we need to know about fractions.

What is Fraction?

A fraction is a way to describe a part of a whole. such as the fraction [tex]\frac{1}{4}[/tex]can be described as 0.25.

Given to us

Mike made 5/6 of his free throw attempts Lisa made 7/9 of her free throw attempts

LCM of Denominator

To bring the denominator, we need to take the LCM of the denominator, therefore,

[tex]\dfrac{5}{6},\ \dfrac{7}{9}[/tex]

we know that the LCM of 6 and 9 is 18. therefore,

[tex]=\dfrac{(5\times 3)}{(6\times 3)},\ \dfrac{(7\times 2)}{(9\times 2)}\\\\=\dfrac{15}{18},\ \dfrac{14}{18}[/tex]

Thus,

Mike made [tex]\dfrac{15}{18}[/tex] of his free throw attempts Lisa made [tex]\dfrac{14}{18}[/tex] of her free throw attempts

Learn more about Fraction:

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A dollar bill is about 0.00011 meter thick. What is this thickness in scientific notation?​

Answers

Answer:

1.1 * 10 ^ -3

Step-by-step explanation:

Given the value of the thivkness of a dollar bill to be 0.0011metre

The standard scientific notation is expressed as A * 10^n

A is any value between 1 and 10 where n is any integer

0.0011 = 11/10000

0.0011 = 11 *1/1000

0.0011 = 11 * 0.0001

0.0011 = 1.1 * 0.001

0.011 = 1.1 * 10 ^ -3 (Note that the decimal point is shifted forward three times and the power is negative because the value is less than 1)

Answer:

1.1x10^-4

Step-by-step explanation:

Order of Operations
P
E
M
D
A
S

Answers

Answer:

D

Step-by-step explanation:

3/5 + 1/5 is 4/5

4/5 x 4/3 is 16/15

16/15 = 1 1/15

Answer:

I believe the answer is D

Step-by-step explanation:

tan30° + Cos30°/ tan30° . cos30°​

Answers

Answer:

tan30° + Cos30°/ tan30° . cos30°

1/√3+√3/2/(1/√3)×√3/2

1/√3+3√3/4

ella and eric are determining how many apps to purchase on their devices. Eric’s plan $4.00 monthly fee plus $0.25 per app Ella’s plan $0.50 per app

Answers

Answer:

So what is the question trying to find out because it seems like an incomplete question.

Find the following in the figure

Answers

If you let me know what you are trying to find and measure I will help you with the answer in the comments. Sorry not enough info from this.
Did they give anymore measurements? Or any numbers at all
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