make x the subject a=7x/k-r

Answers

Answer 1

Answer:

x = [tex]\frac{a(k-r)}{7}[/tex]

Step-by-step explanation:

Given

a = [tex]\frac{7x}{k-r}[/tex] ( multiply both sides by (k - r) )

a(k - r) = 7x ( divide both sides by 7 )

[tex]\frac{a(k-r)}{7}[/tex] = x


Related Questions

A file that is 261 megabytes is being downloaded. If the download is 17.1% complete, how many megabytes have been downloaded? Round your answer to the nearest tenth.

Answers

Answer:

44.6 megabytes

Step-by-step explanation:

If 261 megabytes = 100% and we are looking for 17.1% then we can make a cross product.

261= 100

? = 17.1

It means that (17.1x261)/100 = 44.631

If we round our answer it equals 44.6

Dan made 85% of his free throws. If he took 45 shots how many did he make?

Answers

Answer:

38

Step-by-step explanation:

85%=.85

So 45 × .85 = 38.25

38 shots he made.

Hope this helps

Answer:  38

Work Shown:

85% = 85/100 = 0.85

85% of 45 = 0.85*45 = 38.25

Rounding to the nearest whole number, we get the result 38

As a check, 38/45 = 0.8444 approximately which converts to 84.44% and that's fairly close to 85%. If we tried 39, then 39/45 = 0.8667 = 86.67% which is a bit too high.

[tex]\sqrt{\frac{15}{6} }[/tex]

Simplify, and show work please :D

Answers

Hello! :p

Simply 15/6 to 5/2 = [tex]\sqrt{5/2}[/tex]

   

    2. Simply again [tex]\sqrt{5} \\\sqrt{2}[/tex]

    3. rationalize the denominator so 5/2 times 2/2  [tex]\sqrt{5} \sqrt{2} \\ ---\\2[/tex]

    4. Simply  [tex]\sqrt{5} \sqrt{2}[/tex] to [tex]\sqrt{10}[/tex]

      answer: [tex]\sqrt{\frac{10}{2} }[/tex]

Hope this helps! Have a wonderful day1 :)

Sorry, I had a hard time finding all the symbols, so I had to get creative!

someone pls help me!!!!

Answers

Answer:

-2

Step-by-step explanation:

The interval [-6. -4] refers to x values.

At x = -6, in the line in the middle of -4 and -8, y = 0 at the x axis

At x = -4, y = -4. We know this because when the function crosses x = -4, y = -4 at that point.

The average rate of change is equal to (change in y)/ (change in x) = (yfinal - yinitial) / (xfinal - xinitial) (or the other way around in terms of final and initial)

= (-4 - 0) / (-4 - (-6)) = -4 / (-4 + 6) = -4/2 = -2

Find the value of x so that the ratios are equivalent.

9:x and 54:8

Answers

Answer:1.33 (Repeated decimal)

Step-by-step explanation: Since 54/9 would give you 6, that would mean the scale factor would be 6. That means x multiplyed by 6 would give you 8. So, you would do 8/6 which would give you 1.333 (Repeated decimal) and this is your answer.

I need help ! This paper is due tmr

Answers

Answer:B because i did the work and it’s it

5. Given no other restrictions, what are the domain and range of the following function?
f(x) = x2 – 2x + 2
OD= all real numbers
R = {yl y> 1}
OD = {xx> 1}
R= all real numbers
OD = all real numbers
R= {yly<1}
OD = {x|x>0}
=
R = all real numbers

Answers

Answer:

Step-by-step explanation:


Here is a trapezium.
20 m
Jenny wants to work out the area of
the trapezium.
13 m
She writes:
13 m
N
12 m
area =-
ol
(20+30)(13)
+5 m
+5 m
=(10+30)(13)
= 40x13
= 520 m²
What two mistakes did Jenny make in her method?

Answers

Answer:

Jenny wants to work out the area of

the trapezium.

13 m

She writes:

13 m

N

12 m

area =-

Step-by-step explanation:

jack makes 55$ for 6 hours of work. How much does he make per hour

Answers

Answer:

$9.16

Step-by-step explanation:

55/6=9.16

Please help only if you know. And please don't get this taken down or deleted- this question is very important and confuses me.
What interval would be appropriate to graph the data? what does the question mean???

Answers

Answer: This question is not right

Step-by-step explanation:

What you have asked is how much should the numbers go up on a graph so it all fits on the graph and can be understood.

1st we need to know what data if your numbers were 5 15 20 25 25 20 15 an appropriate interval would be by 5's however if your data was 100 500 1100 800

There would be no way you could fit it on a graph if you went up by five. A better interval would be 100's

Based on my response I hope you can see that in order to find appropriate interval to graph the data we need the data and that you now see what to do or can update the question

if f(x)=4x + 3 find f^-1(x)

Answers

Answer:

f^-1(x) = (x-3)/4

Step-by-step explanation:

The notation f^-1(x) means that you are finding the inverse of the function f(x). To do this, you'll want to swap the "x" and the "y" in the original function, and then solve for y. Here's how:

First, we take the original function and swap the two variables:

y = 4x + 3

x = 4y + 3

Then we subtract 3 from both sides

x - 3 = 4y

Then to get y on its own, we divide both sides by 4.

y = (x-3)/4

Make sure to note that the whole expression x-3 is divided by 4, not just one part of it.

So your new inverse equation is:

f^-1(x) = (x-3)/4

Answer:

y = (1/4)(x - 3) is the desired inverse function of f(x) = 4x + 3.

Step-by-step explanation:

Here we're finding the 'inverse function' of the given f(x) = 4x + 3.  Follow these steps:

1.  Replace the label  f(x)  with y:  y = 4x + 3

2.  Interchange x and y:  x = 4y + 3

3.  Solve this new equation for y:  4y = x - 3, or y = (1/4)(x - 3

No links or wrong answers please

Answers

Answer:

(x+1)(x−2)(x+3)(x−4)

Apply the distributive property by multiplying each term of x+1 by each term of x−2.

(x  

2

−2x+x−2)(x+3)(x−4)

Combine −2x and x to get −x.

(x  

2

−x−2)(x+3)(x−4)

Apply the distributive property by multiplying each term of x  

2

−x−2 by each term of x+3.

(x  

3

+3x  

2

−x  

2

−3x−2x−6)(x−4)

Combine 3x  

2

 and −x  

2

 to get 2x  

2

.

(x  

3

+2x  

2

−3x−2x−6)(x−4)

Combine −3x and −2x to get −5x.

(x  

3

+2x  

2

−5x−6)(x−4)

Apply the distributive property by multiplying each term of x  

3

+2x  

2

−5x−6 by each term of x−4.

x  

4

−4x  

3

+2x  

3

−8x  

2

−5x  

2

+20x−6x+24

Combine −4x  

3

 and 2x  

3

 to get −2x  

3

.

x  

4

−2x  

3

−8x  

2

−5x  

2

+20x−6x+24

Combine −8x  

2

 and −5x  

2

 to get −13x  

2

.

x  

4

−2x  

3

−13x  

2

+20x−6x+24

Combine 20x and −6x to get 14x.

x  

4

−2x  

3

−13x  

2

+14x+24

Step-by-step explanation:

i really dont know

Karl’s rectangular vegetable garden is 20 feet by 45 feet, and Makenna’s is 25 feet by 40 feet. Whose garden is larger in area?

Answers

Answer:

Makennas

Step-by-step explanation:

Area of rectangle = length * width

Area of Karl's garden = 20 * 45 = 900ft²

Area of Makenna's garden = 25 * 40 = 1000ft²

1000 is greater than 900 therefore makennas garden has a greater area than Karls garden

Answer:Makenna's garden is larger in area than Karl'sStep-by-step explanation:Area of Karl's rectangle garden = 20 x 45 feet = 900 feetArea of Makenna's garden = 25 x 40 = 1000 feetConclusion:

Hence, Makenna's garden is larger in area than Karl's because 1000 > 900.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

The circumference of a circle is 12.56 feet. What is the circle's area?

Answers

[tex]\huge \sf༆ Answer ༄[/tex]

As we know, Circumference of the circle can be expressed as :

[tex] \large \boxed{ \: \: \: \: \: \sf2\pi r \: \: \: \: \: }[/tex]

where, r is the radius of the circle, now equate the expression with the given Circumference to find the Radius.

[tex] \sf2\pi r = 12.56[/tex]

[tex] \sf \: r = \dfrac{12.56}{2\pi} [/tex]

[tex] \sf \: r = \dfrac{12.56}{2 \times 3.14} [/tex]

[tex] \sf \: r = \dfrac{12.56}{6.28} [/tex]

[tex] \sf \: r = 2 \: \: ft[/tex]

Therefore, it's radius is 2 feet.

Now, let's calculate its area using the formula ~

[tex] \large \boxed{ \: \: \: \: \: \: \sf \pi {r}^{2} \: \: \: \: \: \: }[/tex]

plug the value of r (radius) as 2.

[tex] \sf3.14 \times {2}^{2} [/tex]

[tex] \sf3.14 \times 4[/tex]

[tex] \sf12.96 \: \: ft {}^{2} [/tex]

Area of circle is 12.96 ft²

How can you identify a linear function?

Answers

Answer:

Linear functions are those whose graph is a straight line. A linear function has one independent variable and one dependent variable. The independent variable is x and the dependent variable is y. a is the constant term or the y intercept.

Step-by-step explanation:

Determine whether the relation is a function. (8, 5), (6, "-2)," (4,-9), (2, "-6)," (4,7)
Yes Or No

Answers

Answer: No

Step-by-step explanation:

Because 4 is used 2 times in the x coordinates it is NOT a function

The average number of students in ten 5th grade classes is 27. Which of the following can be extrapolated from this information?
A
The average weight gain of a kitten on a newly developed brand of kitten food is also 0.3 lbs. a month.
B
The average weight gain of an adult dog on a newly developed brand of adult dog food is also 0.3 lbs. a month.
C
The average weight loss of a puppy on a newly developed brand of puppy food is 0.3 lbs. per month.
D
none of the above

Answers

D Extending the application of (a method or conclusion, especially one based on statistics) to an unknown circumstance by assuming that existing trends will continue or that similar procedures will be applicable



its graphing linear inequalities
if u can help that would be nice

Answers

it is y>_ 5/3x+3 that’s the answer

Answer:

y>_ 5/3x+3 is the answer.

Step-by-step explanation:

Solve the inequalities d/13_>-3

Answers

Answer:

d > -39

Step-by-step explanation:

hope this helps! :D

have a miraculous day!! <3

40% of _______ is 16

Answers

Answer:

40

Step-by-step explanation:

40/100=0.4

0.4 x 40= 16

so 40% of 40 is 16

Answer:

,40

Step-by-step explanation:

40% of 40 is equal to 16

PLEASE HELP ASAP WITH#4

Answers

Answer:
B.

Explanation:

Write an Equation for each of the lines on the graph.

Answers

NOTE: for C there is an x after -4.1176

Step-by-step explanation:

What is 16 divided by 5%=?

Answers

Answer:

320

Step-by-step explanation:

I am assuming we are trying to find 16/5%.

5% is equal to 1/20, so we can make this into :

[tex]\frac{16}{\frac{1}{20} }=16*\frac{20}{1}[/tex]

This is equal to 16 x 20 = 320

Answer:320

Explanation: divide 16 by 5% on your phone calculator

3. Elena had 12 hours working at home daily as a full-time wife and mother. She
spent 12.5% of the time washing clothes. How many hours did she wash the
clothes?

Answers

Answer:

Elena spends 1.5 hours washing clothes.

Step-by-step explanation:

12.5 / 100 = 0.125

0.125 x 12 = 1.5

The answer is 8 hours

Calculator
What is the value of x

Answers

Answer:

71.8

Step-by-step explanation:

Brainliest for free




JK

Solve the inequality d + 6 < 13 for d.

Answers

Answer:

[tex]\huge\boxed{\sf d < 7}[/tex]

Step-by-step explanation:

Given inequality is:

d + 6 < 13

Subtract 6 to both sides

d < 13 - 6

d < 7

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

(s – 7)^2= 0


then, what is the value of: (s-9)(s + 3)?

Answers

Answer:

s² - 6s - 27

Step-by-step explanation:

(s - 7)² = 0

s² + 49 - 14s = 0

Now,

(s - 9)(s + 3)

(s × s) + (s × 3) - (9 × s) - (9 × 3)

s² + 3s - 9s - 27

s² - 6s - 27

Select the correct answer from each drop-down menu.

Answers

Answer:

so sorry i don't know the answer

HELP PLSSSS ILL REWARD BRAINLIEST!!!

Answers

To find angle BCD, find the angle ACB that lies next to it on the straight line first.

Angles in a triangle add up to 180.

To find angle ACB:
180 - 83 - 47 = 50

So angle ACB = 50.


Angles on a straight line add up to 180 as well.

So to find angle BCD:
180 - 50 = 130

So angle BCD = 130, so the answer is D.

Thad attempted 25 free throws and made 17 of them while Amy attempted 30 and made 20. Who shot the higher percentage?

Answers

Answer: Thad-1.471

Amy-1.500

SO AMY SHOT WITH A HIGHER PERCENTAGE

Step-by-step explanation: brainliest would be appreciated

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