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sattari [20]
2 years ago
11

Pls help me I'm in neeeeed :(​

Mathematics
1 answer:
-BARSIC- [3]2 years ago
7 0

Answer:

x = 30

Step-by-step explanation:

x+2x= 90-------> 3x=90

Divide by 3

x= 30

Hope this helps! Pls mark brainliest if correct:)

You might be interested in
three cones have a volume of 192π cm³.Cone A has a radius of 2 cm. Cone B has a radius of 3 cm. Cone C has a radius of 4 cm. fin
andrew11 [14]

9514 1404 393

Answer:

  A: 144 cm

  B: 64 cm

  C: 36 cm

Step-by-step explanation:

The volume of a cone is given by ...

  V = (1/3)πr²h

Solving for h, we get ...

  3V/(πr²) = h

Filling in the given values, we get ...

  3(192π)/(πr²) = h

  576/r² = h

Then the heights of the different cones are ...

  A: r = 2, h = 576/4 = 144 . . . cm

  B: r = 3, h = 576/9 = 64 . . . cm

  C: r = 4, h = 576/16 = 36 . . . cm

8 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST!
ra1l [238]

Answer:

a

Step-by-step explanation:

6 0
2 years ago
What is the value of x?
Dafna11 [192]

Answer:

28!

Step-by-step explanation:

soooooo its a 90 degree angle

2x+1+33=90

2x+34=90

    -34  

2x=56

x=28

7 0
2 years ago
Read 2 more answers
  PLZZZZZZZ HELPP  Which ordered pair is the solution to the system of equations? {y=2x−15} {4x+3y=−5} (5, −5) (4, −7) (0, 6) (7
Sophie [7]

solution is (4, - 7 )

given the equations

y = 2x - 15 → (1)

4x + 3y = - 5 → (2)

substitute y = 2x - 15 into (2)

4x + 3(2x - 15) = - 5

4x + 6x - 45 = - 5

10x - 45 = - 5 ( add 45 to both sides )

10x = 40 ( divide both sides by 10 )

x = 4

substitute x = 4 into (1) for corresponding value of y

y = (2 × 4 ) - 15 = 8 - 15 = - 7

solution is (4, - 7 )


8 0
3 years ago
The following sequence of operations is done on a number. Multiply by 5, add 2, subtract 10, multiply by 2. The final result is
strojnjashka [21]

answer the original number is 6

(5x + 2 - 10) *2 = 44

10x + -16 = 44

10x = 60

x=6

4 0
2 years ago
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