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
Darina [25.2K]
3 years ago
7

I Need HELP!how do you figure out 22/7=5/X

Mathematics
1 answer:
Oksana_A [137]3 years ago
5 0
\frac{22 }{7}= \frac{5}{x} \\ \\ x\neq 0 \\ \\ 22x=7*5\\ \\22x=35 \ \ /:22 \\ \\x=\frac{35}{22}\\ \\x=1\frac{23}{25}
You might be interested in
Can the degree of a monomial ever be a negative? please explain why or why not.
lana [24]
Greetings!

Yes, the degree on a monomial can be negative:

Example:
9x^{-2}

This is equal to:
1/9x^{2}

Hope this helps.
-Benjamin
3 0
3 years ago
The perimeter of a rectangle is 30.8 km and it’s diagonal length is 11 km. Find it’s length and width
blsea [12.9K]

Answer:

Length of the rectangle is 15.0325 km and width is 0.3765 km.

Explanation:

Given:

Perimeter of a rectangle = 30.8 km

Length of diagonal of rectangle = 11 km

To find:

The length and width of rectangle=?

Solution:

Lets assume length of the rectangle = x km

And assume width of the rectangle = y km

Lets first create equation using given  perimeter

perimeter of rectangle = 2 ( length +  width )

=> 30.8 km = 2 ( x + y )  

=>x + y = \frac{30.8}{2}

=> y = 15.4 – x             ------(1)

As diagonal and two sides of rectangle forms right angle triangle whose hypoteneus is diagonal ,  

=> length^2 + width^2 = diagonal^2

=> x^2 + y^2 = 11^2

=> x^2 + y^2 = 121

On substituting value of y from (1) in above equation we get

=> x^2 + (15.4-x)^2 = 121

=>x^2 + (15.4)^2 + x^2 – 2 x 15.4 \times x   = 121

=> 2x^2-30.8x + 237.16 -121  = 0

=> 2x^2-30.8x + 116.16 = 0

Solving above quadratic equation using quadratic formula

General form of quadratic equation is  

ax^2 +bx +c = 0

And quadratic formula for getting roots of quadratic equation is  

x= \frac{ -b\pm\sqrt{(b^2-4ac)}}{2a}

As equation is 2x^2-30.8x + 116.16 = 0, in our case

a = 2 ,  b = -30.8 and c = 116.16

Calculating roots of the equation we get

x=\frac{ -(-30.8)\pm\sqrt{(-30.8)^2-4(2)( 11)} } {(2\times2)}

x=\frac{30.8\pm\sqrt{(948.64-88)}}{4}

x=\frac{30.8\pm\sqrt{860.64}}{4}

x=\frac{30.8\pm\sqrt{860.64}}{4}

x=\frac{(30.8\pm29.33)}4

x=\frac{(30.8+29.33)}{4}

x=\frac{(30.8-29.33)}{4}

=> x = 15.0325 or x = 0.3675

As generally length is longer one ,  

So x = 1.0325

From equation (1) y = 15.4 – x = 0.3765

Hence length of the rectangle is 15.0325 km and width is 0.3765 km.

6 0
3 years ago
What number do 7 6 3 and 5 go into(lcm)
laila [671]

Answer:

210

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Give the domain of each of the following functions in interval notation.
balandron [24]

Answer:

the domain of f(x) is R  ⇒ ] -∞ , ∞[

the domain of h(x) is x ≤ -5 ⇒ ] -∞ , -5]

Step-by-step explanation:

h(x) = \sqrt[8]{-2x-10}

-2x - 10 ≥ 0

-2x ≥ 10

x ≤ -5

8 0
3 years ago
Simplify to create an equivalent expression: -2r + 7(-2n - 3)
Andrew [12]

Answer:

-14n - 2r - 21

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • I WILL GIVE YOU 3 COOKIES IF YOU CAN ANSWER THIS QUESTION CORRECTLY
    9·2 answers
  • Order the following numbers from least to greatest.<br> |-2 1⁄5|, |-2 1⁄10|, 2 1⁄6, 2 1⁄9
    13·2 answers
  • What is the base of a parallelogram with an area of 72 square feet and a height of 12 feet?
    15·1 answer
  • PLEASE HELP 100 POINTS
    14·1 answer
  • Plz help me on this final i beg of u!!!
    7·2 answers
  • Surf board: $281.39 Tax Rate: 6% What is the final price of the product after a tax is applied?
    14·1 answer
  • The stopping distance on wet pavement at 20mph is about 60feet. The stopping distance at 30mph is 120feet. What would you estima
    9·1 answer
  • The function H =f(t) gives the temperature, HF, of an object t minutes after it is taken out of the refrigerator and left to sit
    10·1 answer
  • I will give Brainliest!!!!!!!!!!!!!!!
    14·1 answer
  • A farmer mows 1/5 of an acre each day. If his property has 3 acres, how many days will it take to mow it all?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!