1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kamila [148]
3 years ago
7

H=l/l-2k make k the subject​

Mathematics
1 answer:
strojnjashka [21]3 years ago
3 0

Answer:

k=\dfrac{l(h-1)}{2h}

Step-by-step explanation:

The given equation is :

h=\dfrac{l}{l-2k} ....(1)

We need to find the value of k.

Cross multiplying equation (1)

h(l-2k)=l\\\\hl-2hk=l\\\\hl-l=2hk\\\\k=\dfrac{l(h-1)}{2h}

So, the value of k is equal to \dfrac{l(h-1)}{2h}.

You might be interested in
A rectangular piece of cardboard is 16y cm long and 23 cm wide. Four square pieces of cardboard whose sides are 6y cm each are c
Anna11 [10]

Answer:

Area of remaining cardboard is 224y^2 cm^2

a + b = 226

Step-by-step explanation:

The complete and correct question is;

A rectangular piece of cardboard is 16y cm long and 23y cm wide. Four square pieces of cardboard whose sides are 6y cm each are cut away from the corners. Find the area of the remaining cardboard. Express your answer in terms of y. If your answer is ay^b, then what is a+b?

Solution;

Mathematically, at any point in time

Area of the cardboard is length * width

Here, area of the total cardboard is 16y * 23y = 368y^2 cm^2

Area of the cuts;

= 4 * (6y)^2 = 4 * 36y^2 = 144y^2

The area of the remaining cardboard will be :

368y^2-144y^2

= 224y^2

Compare this with;

ay^b

a = 224, and b = 2

a + b = 224 + 2 = 226

3 0
2 years ago
4x + 1 + x = -4<br> Can anybody help me solve this ?
ValentinkaMS [17]

Answer:

Simplify the equation

Step-by-step explanation:

4x + 1 + x + -4

= 4x + x + 1 - 4

= 5x + -3

= 5x - 3

Hope this helps

7 0
3 years ago
Read 2 more answers
Put this equation into slope- intercept form. -2x + 3y = 9​
AveGali [126]

Answer:

y = 2/3x + 3

Step-by-step explanation:

In order to put it in slope intercept form (y = mx + b), y needs to be isolated.

Add 2x to both sides:

-2x + 3y = 9​

3y = 2x + 9

Then, divide both sides of the equation by 3.

3y = 2x + 9

y = 2/3x + 3 is the equation in slope intercept form

8 0
2 years ago
What value of x is in the solution set of 9(2x + 1) &lt; 9x - 18?
Alex17521 [72]

Answer:

b. -3

Step-by-step explanation:

9(2x+1) < 9x-18

(distribute the 9)

18x+9 <9x-18

(subtract 9 from both sides)

18x<9x-27

(subtract 9x from both sides)

9x<-27

(divide both sides by 9)

x<-3

6 0
3 years ago
Read 2 more answers
What is the slope (5,7) and (2,-2)​
Romashka [77]

Answer:

slope = 3

Step-by-step explanation:

to find the slope you do (y2-y1)/(x2-x1)=m

so we can plug the points into this formula

(5,7)     (2,-2)

x1 y1    x2 y2

-2-7/2-5=m

-9/-3=m

Simplifies to

3=m

4 0
2 years ago
Other questions:
  • Simplify the expression using the distributive property.
    10·1 answer
  • The perimeter of a rectangle changes from 2.5 to 10 after a dilation. What was the scale factor of the dilation?
    9·2 answers
  • The number of bacteria in a culture is increasing according to the law of exponential growth. After 3 hours there are 100 bacter
    8·1 answer
  • I need big help!!! The cost of a school banquet is $25 plus $15 for each person attending. Create a table, sketch the graph, and
    11·1 answer
  • write an equation to find the amount of simple interest, earned on a 600 dollar investment after 9 months, of the interest rate
    12·1 answer
  • Stephen walks dogs to make money over the summer. At the beginning of the summer, he has $41. The table shows the total amount o
    14·1 answer
  • What decimal is equal to 7/9
    7·2 answers
  • a drink recipe calls for lemon juice and apple juice. the equation below represents the proportional relationship between the cu
    7·1 answer
  • Please answer this. I need and will give
    15·1 answer
  • Need help with this i don't understand
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!