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
tensa zangetsu [6.8K]
3 years ago
11

Please show work for both problems

Mathematics
1 answer:
pentagon [3]3 years ago
5 0

Answer:

1) x = 25    2) x = 23; m∠CBD = 80 degrees

Step-by-step explanation:

1) 5x + 15 = 6x - 10           Set both equations equal to each other

- 5x         - 5x                  Subtract 5x from both sides

15 = x - 10

+ 10    + 10                       Add 10 to both sides

25 = x

2) 2x + 14 + x + 7 = 90         Set the equations equal to 90

   3x + 21 = 90                     Combine like terms

         - 21  - 21                      Subtract 21 on both sides

3x = 69                                 Divide both sides by 3

x = 23

Plug 23 into the equation

2(23) + 14 = 60

You might be interested in
How do i turn 3/8 into a percent
Nezavi [6.7K]
Answer:
Multiply by 100
6 0
2 years ago
Read 2 more answers
What are square roots?
nataly862011 [7]
Square roots are the result of multiplying the number by itself for example take 5x5 = 25 that’s a result of a number when multiplying by itself.
6 0
3 years ago
Read 2 more answers
A piece of wire measuring 20 feet is attached to a telephone pole as a guy wire. The distance along the ground from the bottom o
dem82 [27]

Answer: Height at which the wire is attached to the pole is 12 feet.

Explanation:

Since we have given that

Length of the wire = 20 feet

Let the height at which wire is attached to the pole be h

and distance along the ground from the bottom of the pole to the end of the wire be x+4

Now, it forms  a right angle triangle so, we can apply "Pythagorus theorem".

H^2=B^2+P^2\\\\20^2=x^2+(x+4)^2\\\\400=x^2+x^2+8x+16\\\\400=2x^2+8x+16\\\\400=2(x^2+4x+8)\\\\200=x^2+4x+8\\\\x^2+4x-192=0\\\\x^2+16x-12x-192=0\\\\x(x+16)-12(x+16)=0\\\\(x+16)(x-12)=0\\\\x=-16\ and\ 12

But height cant be negative so, height will be 12 feet.

Hence, height at which the wire is attached to the pole is 12 feet.


8 0
3 years ago
I do not understand this question!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Softa [21]
The answer is C.........
7 0
3 years ago
Read 2 more answers
Please help me out I know that supplimentary angles have to equal 180 but I have no idea how to solve for x since they didnt giv
Crazy boy [7]

Answer:

x = 6

Step-by-step explanation:

13x + 2 = 12x + 8

Because of:

1) Corresponding angles

2) Vertically opposite angles

13x + 2 = 12x + 8

13x - 12x = 8 - 2

x = 6

4 0
3 years ago
Read 2 more answers
Other questions:
  • F(n)=n^2+2n find f(-6)
    8·1 answer
  • 3<br><img src="https://tex.z-dn.net/?f=3%20%5Csqrt%7B18%7D%20" id="TexFormula1" title="3 \sqrt{18} " alt="3 \sqrt{18} " align="a
    5·2 answers
  • Write 144 with an exponent by using 12 as the data base.
    12·1 answer
  • Name the algebraic property demonstrated in the example below:<br> 3 • (x • y) = (3 • x) • y
    9·1 answer
  • I need help please anyone??
    14·2 answers
  • A driver was at 60m below sea level. the driver swam up 2m every 5 seconds.explain whether the driver would have reached the sea
    9·1 answer
  • Select the correct comparison.
    9·1 answer
  • Help pls I'll give 25 points
    5·1 answer
  • Help, please. This is related to mirror and shadow problems
    7·1 answer
  • Evaluate the function.<br> f(x) = 2x2<br> Find f(-3)
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!