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grigory [225]
3 years ago
5

What is the value of x in the proportion below?

Mathematics
2 answers:
nekit [7.7K]3 years ago
6 0
The answer is B. 9 hours
Vesna [10]3 years ago
4 0
The answer is: The letter B. Which is 9
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Logan bought 30 balloons. 4/6 of the balloons are purple.<br> How many of the balloons are purple?
Georgia [21]

Answer:

20 are purple.

Step-by-step explanation:

4/6 * 30

= 120/6

= 20.

6 0
3 years ago
Find the inverse f(x)=x+5/3x-1<br><br> f^-1(x)=
Kipish [7]

Answer:

  • f^-1(x) = (3/8)(x +1) . . . . as written
  • f^-1(x) = (x +5)/(3x -1) . . . with appropriate parentheses

Step-by-step explanation:

The inverse function can be found by solving for y:

  x = f(y)

  x = y + 5/3y -1 . . . . . . . . . . y +(5/3)y -1 . . . per order of operations

  x+1 = 8/3y . . . . . . . . . . add 1

  (3/8)(x +1) = y . . . . . . . . multiply by 3/8

  f^-1(x) = (3/8)(x +1) . . . . . inverse of the function as written

_____

Perhaps you intend f(x) = (x+5)/(3x-1). The inverse is found the same way.

  x = (y +5)/(3y -1)

  x(3y -1) = y +5

  3xy -x = y +5 . . . . . eliminate parentheses

  3xy -y = x + 5 . . . . . add x-y

  y(3x -1) = x +5 . . . . . factor out y

  y = (x +5)/(3x -1) . . . divide by the coefficient of y

  f^-1(x) = (x +5)/(3x -1) . . . . inverse of rational function

7 0
3 years ago
Math!!! Need help!!!!!!!
iogann1982 [59]
Thats either 7/5 or 1 2/5 but since theres a whole number i think its 1 2/5
3 0
3 years ago
A crane lifts 50 Newtons 2 meters. How much work is done
Nikitich [7]

Answer:

100 Joules

Step-by-step explanation:

We use the definition of Work as the force applied multiplied by the distance the object was moved. In our case the force exerted is 50 N, over a distance of 2 meters, therefore:

Work = F * d = 50 N * 2 m = 100 N*m = 100 Joules

The SI unit for Newton times meter is called "Joule".

7 0
3 years ago
Whats 69x420?????????
IRISSAK [1]

Answer:

28980

Step-by-step explanation:

Also "<em>nice</em>"

3 0
3 years ago
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