5a + 2b = 40 solve for b

Answers

Answer 1

Answer:

5a-40=-2b

5a-40/-2=-2b/-2

-5a/2+20=b


Related Questions

Simplify 150\sqrt{150}
150

Answers

The required solution  of the given expression is  12.247.

What is expression?

An expression is a set of terms combined using the operations +, – , x or ÷. An expression is a number, a variable, or a combination of numbers and variables and operation symbols. An expression is in simplest form when no terms can be combined.

Given:

The given expression is

[tex]\frac{150}{\sqrt{150} } \\[/tex]

Simply or simplification is reducing the expression/fraction/problem in a simpler form. A fraction is in simplest form if the top and bottom have no common factors other than 1.

The process of making something less complicated and therefore easier to do or understand, or the thing that results from this process.

According to given question we have

[tex]\frac{150}{\sqrt{150} } \\[/tex]

We know that the square root of 150 is  12.247.

By putting the value we have

150/12.247

= 12.247.

Therefore, the required solution  of the given expression is  12.247.

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PLEASE HELP ASAPPP !! WILL GIVE BRAINLIEST AND 5 STAR RATINGGG

Answers

The answer is 37/30. Since you have already converted the fractions to have the common denominator, simply add the numerators.

Answer:

37/30

Step-by-step explanation:

whats the set of all prime numbers

Answers

Answer:

Step-by-step explanation:

prime numbers are numbers that are divisible by 1 and itself such as 2,3,5,7,11

there are also types of prime numbers which i recommend reading: https://en.wikipedia.org/wiki/Category:Classes_of_prime_numbers

Which kind of symmetry does the letter D have?

Answers

The letter D has a HORIZONTAL symmetry

Answer:

D has a horizontal symmetry.

Arc XY located on circle A has a length of 40 centimeters. The radius of the circle is 10 centimeters. What is the measure of the corresponding central angle for XY in radians?

Answers

The measure of the corresponding central angle for XY in radians is; 229.1°

What is the angle subtended by the arc?

We know that an arc is a part of the entire perimeter of a circle.

Radian is defined as a unit of plane angular measurement that is equal to the angle subtended by the circle at the center by an arc that is of the length equal to the radius.

We also know that the circle as a whole contains 2π radians. Now, at first we are required to find the perimeter of the circle.

Perimeter of the circle is given by the formula 2πr.

Thus, perimeter of the circle = 2πr = 2π * 10 =20π = 62.851cm

Hence value of arc in radians = 40/62.851 * 2π = 0.636 x 2 π = 1.272π

Radian can be converted to degree by multiplying the radian measure by 180/π

Therefore, angle subtended by arc in degrees =1.272 π * 180 /π =229.1 °

Hence the angle subtended by arc is 229.1°

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Which equation best represents the graph shown below? Explain in detail how you arrived at your answer by stating each of the mathematical transformations necessary and to produce the graph
Answer step by step

A. Y = (x - 2)^2 - 3

B. Y = (x + 2)^2 - 3

C. Y = - ( x - 2 )^2 - 3

D. Y = 1/2 ( x + 2)^2 - 3

Answers

The equation that best represents the parabola given in this problem is:

A. y = (x - 2)² - 3.

What is the equation of a parabola given it’s vertex?

The equation of a quadratic function, of vertex (h,k), is given by:

y = a(x - h)² + k

In which a is the leading coefficient.

For this problem, the vertex is at (2, -3), hence:

h = 2, k = -3.

And:

y = a(x - 2)² - 3.

When x = 0, y = 1, hence:

1 = 4a - 3

4a = 4

a = 1.

Hence the equation is given by:

A. y = (x - 2)² - 3.

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One bar of candy A and two bars of candy B have 768 calories. Two bars of candy A and one bar of candy B contain 783 calories. Find the caloric content of each candy bar.

Answers

Answer:

Bar A : 266 calories; Bar B : 251 calories

Step-by-step explanation:

Assume bar A's caloric content is "a" and bar B's caloric content is "b".

1. a + 2b = 768

2. 2a + b = 783

Add both equations together.

3. 3a + 3b = 1551

Divide both sides by 3.

4. a + b = 517

Subtract equation 4 from equation 1.

5. a + 2b - a - b = 768 - 517

Evaluate.

6. b = 251

Subtract b's value from equation 2.

7. 2a + b - b = 783 - 251

Evaluate.

8. 2a = 532

Divide both sides by 2.

9. a = 266

simplify so that your answer contains only positive exponents

Answers

Hello and Good Morning/Afternoon:

Let's take this problem step-by-step:

First Question:

  [tex]\text{Copy the equation}\\\hookrightarrow \frac{xy^4}{x^3y^2} \\\\\text{Exponents with common bases when dividing from each other}\\\hookrightarrow \text{the power of the denominator can be subtracted from the power of the numerator}\\ \text{ --- } \dfrac{xy^4}{x^3y^2} =\dfrac{x}{x^3}*\dfrac{y^4}{y^2}=x^{1-3}*y^{4-2}=x^{-2}*y^{2} =\dfrac{y^2}{x^2}[/tex]

Second Question:

[tex]\hookrightarrow\text{simply start from the most inner calculation before going out}[/tex]

  [tex]\text{---}-(-x)^3= -1 *(-1 * x)^3=-1*(-1)^3*x^3=-1*-1*x^3=x^3[/tex]

Answer:

y² / x²

Hope that helps!

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Calculate the acceleration of a 40 kg crate of softball gear when pulled sideways with a net force of 200 n

Answers

Answer:

5 m/s²

Step-by-step explanation:

To find the acceleration we apply Newton's second law of motion

F = ma   where F is the net force in Newtons, m the mass of the object (kg) and a the acceleration in  meters/second² (m/s²)

Given

F = 200 N

m = 40 kg

we have 200 = 40a

So a = 200/40=5 m/s²

1. Simplify. Show all steps for full credit. Circle your final answer. (4 points).
(4+1)^3/ 2+4^2-13

Answers

Answer: 25

Step-by-step explanation:

(4+1)^3/ 2+4^2-13=

5^3/(2+16-13) =

125/(18-13)=

125/5=25

How is adding and subtracting
decimals similar to and different from adding
and subtracting whole numbers?

Answers

Answer:

adding decimals is different then subtracting because adding would be bigger subtracting means smaller

My number is less than 50. - it is a factor of 70. - it is a multiple of 5 and 7. what is minnu's number? a. 5 b. 35 c. 14 d. 70

Answers

Answer:

B) 35

Step-by-step explanation:

35 is less than 50 and it's a factor of 70, a multiple of 5 and 7 is 35 just by multiplying the numbers it will give you that answer.

HELP ME DO THESE PROBLEMS PLS THANK YOU

Answers

Answer:

6. 7

7. 32

8. -17

9. -24

10. 6 ft

Step-by-step explanation:

6: 2(3) +1

    6+1=7

7: 16-4(-4)

   16+16=32

8: 12(-2)+7

   -24+7=-17

9: -9-3(5)

   -9-15=-24

10: 24-3(6)

     24-18=6

Evaluate the given function as required. (round your answer to two decimal places.) f(x) = x 6 x2 1 at x = 5 f(5) =

Answers

The value of the function for f(5) is 15,651.

The given function is [tex]f(x)=x^{6}+x^{2} +1[/tex].

We need to find the value of f(5).

What is the function?

Functions are the fundamental part of calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x. Mapping or transformation is used to denote a function in math.

Now, put x=5 in the function [tex]f(x)=x^{6}+x^{2} +1[/tex] and simplify.

That is, f(5)=[tex]5^{6} +5^{2} +1[/tex]

=15,625+25+1

=15,651

Therefore, the value of the function for f(5) is 15,651.

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M/n=y/x for m what is the answer

Answers

Answer:

M = n(y/x)

Step-by-step explanation:

M/n = y/x

Multiply both sides by N to cancel it out.

M = n(y/x)

a building in a city has a rectangular base. the length of the base measures 65ft less than three times the width. the perimeter of this base is 910ft. what are the dimensions of the base?

Answers

The dimension of the base of the rectangular building is 340 x 135ft.

Perimeter of Rectangle:

The definition of perimeter of the rectangle is the total length or distance of its boundary on all sides.

The general formula to calculate the Perimeter of a rectangle is,

P = 2(l + w)

Where,

l represents the length of the rectangle

w represents the width of the rectangle.

Given,

The building in a city has a rectangular base. the length of the base measures 65ft less than three times the width.

The perimeter of this base is 910ft.

Now, we need to find the dimensions of the rectangular base.

According to the given details, the values of

L = 3W - 65

W = W

P = 910

Apply the values on the formula, then we get,

=> 910 = 2 * (L + W)

=> 910/2 = (L + W)

=> 455 = L + W

Apply the value of L,

=> 475 = 3W - 65 + W

=> 475 + 65 = 4W

=> 540 = 4W

=> 540/4 = W

=> W = 135

Apply the value of W as 135, in order to get the value of L,

=> L = 3*135 - 65

=> L = 405

=> L = 340

Therefore, the dimension of the rectangular base is 340 x 135 ft.

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find the product of 12 0.6 and 6 1/4​

Answers

Answer:

17 because you have to sutract them

Step-by-step explanation:

Can someone please solve it ?

Answers

Answer:

A. because all of the numerators are larger than the denominators, there will be a product left over.

Step-by-step explanation:

At the library, Newton borrows 8 books and Descartes borrows 4 books. 7 of their books are nonfiction. The rest are fiction. How many fiction books did they borrow together?​

Answers

5

First order equations include linear equations. In the coordinate system, the linear equations are defined for lines. A linear equation in one variable is one in which there is a homogeneous variable of degree 1 (i.e., only one variable). Multiple variables may be present in a linear equation. Linear equations in two variables, for example, are used when a linear equation contains two variables. Examples of linear equations include 2x - 3 = 0, 2y = 8, m + 1 = 0, x/2 = 3, and 3x - y + z = 3.

Total books borrowed = 8+4 = 12

No. of non - fiction books = 7

No. of fiction books = 12 -7

                                    = 5

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20% in fraction form

Answers

20/100

That is the answer if u want it simplified it is 1/5

Answer:

20/100 simplified is 1/5

Step-by-step explanation:

it is the fraction form

please help! i can’t figure this out I’ve somebody help QUICKKKK !!!!

Answers

Answer: A

Step-by-step explanation:

Write an expression that computes the difference of the variables ending_time and starting_time .

Answers

ending_time - starting_time is expression that computes the difference of the variables ending_time and starting_time.

What does a variable schedule mean?

There is an alternative to the standard 8-hour workday, five days a week work schedule: a variable work hours program. It is a program that provides staff members more freedom and control over their time, both at work and at home.

What is an example of variable schedule?

A variable-ratio schedule is a partial reinforcement schedule used in operant conditioning when a response is reinforced after a variable number of responses. Using this plan, a constant, high rate of reaction is produced. Games of chance and lotteries are two excellent examples of rewards with variable-ratio schedules.

An expression that computes the difference of the variables ending_time and starting_time  = ending_time - starting_time

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Open the cpt manual to the page that contains code 40490. what section of the cpt coding manual is this code listed in?

Answers

The section of the CPT coding manual is the code 40490 is listed in is "digestive system."

What is CPT codes?

CPT is the language used by providers and payers when billing medical procedures and services for reimbursement.

Some key features regarding the CPT codes are-

CPT or Current Procedural Terminology, is a set of medical codes used to describe the procedures and services performed by physicians, allied health care professionals, provided by trained practitioners, healthcare facilities, outpatient facilities, and laboratories.CPT codes, in particular, are used to notify services and procedures to both federal and private payers for repayment of rendered healthcare services.CPT codes were developed by the American Medical Association (AMA) in 1966 to standardize reporting of medical, surgery, and diagnosis and treatment procedures and services performed in both inpatient and outpatient settings. Each CPT system defines a written description of a process or service, removing the need for the patient's subjective interpretation of what was provided.

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HELP ME QUICK PLEASE!!

Manny took home a couple of his friends after soccer practice. He originally had 4 gallons of gas in his car. He used 1.05 gallons of gas to take one friend home and three tenths gallon to take the other friend home. How much gas did he have left in his car after taking both friends home?

A: 1.04 gallons
B: 2.95 gallons
C: 3.70 gallons
D: 2.65 gallons

Answers

3/10 is the same as 0.3
So
0.3 + 1.05 = 1.35
To work out how much gas he has left:
4-1.35= 2.65
Answer=D

D) 2.65 gallons of gas left in his car after taking both friends home when 1.05 gallons of gas is used to take one friend home and three tenths gallon to take the other friend home.

Manny used 1.05 + 0.3 = 1.35 gallons of gas to take his friends home.

Since he originally had 4 gallons of gas, he had 4 - 1.35 = 2.65 gallons of gas left in his car after taking both friends home.

So the answer is D.

Here is the solution in more detail:

Manny started with 4 gallons of gas.

He used 1.05 gallons of gas to take one friend home.

He used 0.3 gallons of gas to take the other friend home.

The total amount of gas he used was 1.05 + 0.3 = 1.35 gallons.

Therefore, he had 4 - 1.35 = 2.65 gallons of gas left in his car.

I hope this helps! Let me know if you have any other questions.

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2.2 question 7) Which lines are perpendicular? The_____ lines are perpendicular (blue and green) How do you know? The product of their slopes is....

Answers

It’s the expression 2.2 and you add and subtract 3

What is the gradient of a line perpendicular to a line with a gradient of 1/6 ?

Answers

Answer:

-6

Step-by-step explanation:

m1 × m2 = -1

(1/6) × m2 = -1

m2 = -6

Are any of the subsets of the real number system (real numbers, whole numbers, integers, rational

numbers, or irrational numbers) are closed under multiplication? Which onest Explain why

Answers

The collection of all rational and irrational numbers, represented by the letter R, is known as a real number. A real number can therefore be either rational or irrational.

The set of natural numbers N = {1, 2, 3, 4, 5, . . .}

The set of integers Z = {. . ., –3, –2, –1, 0, 1, 2, 3, . . .}

The set of rational numbers Q = {x: x = a/b; a, b ∈ Z and b ≠ 0}

The set of irrational numbers, denoted by T, is composed of all other real numbers.

Thus, T = {x : x ∈ R and x ∉ Q}, i.e., all real numbers that are not rational.

Some of the irrational numbers include √2, √3, √5, and π, etc.

Some of the apparent relations among these subsets are:

N ⊂ Z ⊂ Q, Q ⊂ R, T ⊂ R, N ⊄ T.

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find the length of a diagonal of a rectangular room of length 5 m, width 3 m and height 2.5 m​

Answers

Answer:

What you are looking for is the length of the 'solid diagonal'. First we need to find the length of the base diagonal. That can be done easily using Pythagorean theorem.  52+32−−−−−−√=6. Now this diagonal is a leg of the bigger right triangle whose hypotenuse is the required solid diagonal. You can see this from amd's picture. So apply Pythagorean theorem again.  62+(2.5)2−−−−−−−−−√=37.25−−−−√. You can work that out with a calculator.

In general for a cuboid with dimensions a, b and c(order doesn't matter), the solid diagonal is:  a2+b2+c2−−−−−−−−−−√

Step-by-step explanation:

Answer:

√62+(2.5)2=√37.25.

Step-by-step explanation:

What you are looking for is the length of the 'solid diagonal'. First we need to find the length of the base diagonal. That can be done easily using Pythagorean theorem.  52+32=6" role="presentation" style="margin: 0px; padding: 0px; border: 0px; font-style: normal; font-variant: inherit; font-weight: normal; font-stretch: inherit; line-height: normal; font-family: inherit; font-size: 15px; vertical-align: baseline; box-sizing: inherit; display: inline; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; position: relative;"> 52+32−−−−−−√=6 52+32=6. Now

Is the equation always, sometimes, or never true?

Answers

Answer:

never

Step-by-step explanation:

-1=0 is not possible

How much money did billy start with if he saves 19 dollars in 5 days?

Answers

ANSWER: 3

EXPLANATION: 19 / 5
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