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
taurus [48]
3 years ago
10

I need help on number 15

Mathematics
1 answer:
garri49 [273]3 years ago
3 0
Okay, you now a triangle has 180º degrees and to add to 180º, you have to add all the numbers you have like this:
2x+x+90 (the box is 90º)=180º; add like terms like 2x+x
3x+90=180; cancel 90 by subtracting it and also subtract 90 from 180
3x=90;divide 3 to isolate x and also divide 90/3
x=30 :)
You might be interested in
5x +20 and 9x. Solve for X
Dennis_Churaev [7]
If u were to add 5x+20=9x you’d get x=5
3 0
2 years ago
Find the x- and y-intercepts for the linear equation –3x + 4y = 24.
Sav [38]

Answer:

x- intercept = - 8, y- intercept = 6

Step-by-step explanation:

To find the x- intercept let y = 0 and solve for x

- 3x + 4(0) = 24

- 3x = 24 ( divide both sides by - 3 )

x = - 8 ← x- intercept

To find the y- intercept let x = 0 and solve for y

- 3(0) + 4y = 24

4y = 24 ( divide both sides by 4 )

y = 6 ← y- intercept

3 0
2 years ago
Please help i will give brainlist don't answer if you don't know it
Troyanec [42]

Answer:

1:

Step-by-step explanation:

7 0
2 years ago
How do I do number three help pleaseeeeeeee
posledela
I got 36. I did 5-2=3, 3•180=540, 540/5=108, 180-108=72, and 72/2= 36
4 0
3 years ago
The figure is made up of a cylinder and a cone.
Gnoma [55]

Answer:

51*pi or 160.221

Step-by-step explanation:

total volume = volume of a cone + volume of a cylinder

total volume = 1/3* pi*r^2* height(of cone) + pi* r^2 *height(of cylinder)

total volume = 1/3 * pi * 3^2 * 5 + pi * 3^2 * 4

total volume = 51*pi = 160.221

7 0
3 years ago
Other questions:
  • Compare A and B, if: 12.5% of A is equal to $b and 30% of B is equal to $3b
    14·1 answer
  • How much does a computer monitor weight kilomerters
    15·1 answer
  • The garcia family bought a house for $53575. They made a down payment of 20%. How much was the down payment
    12·1 answer
  • Find the x value for the point that splits segment AB in half if point A is located at (4, 3) and point B is located at (−2, 6).
    13·2 answers
  • Alexi transformed figure L such that its image is figure K after a counterclockwise rotation about the origin and a reflection o
    9·2 answers
  • PLS HELP HURRY ILL MARK AS BRAINLESS WHATS THE ANSWER TO THESES 3 QUESTIONS
    15·1 answer
  • How to find the slope of a graph
    15·1 answer
  • This week Kent works 15 hours at$12.50 an hour His Paycheck Including his commission was $263.85 can was to know how much earned
    6·2 answers
  • Which event leads to Mio regaining her confidence?
    5·1 answer
  • Can you help me please as soon as possible :)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!