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
stellarik [79]
2 years ago
6

Yo can somebody help me with this question

Mathematics
1 answer:
nydimaria [60]2 years ago
6 0

Answer:

\huge\boxed{x=9}

Step-by-step explanation:

\angle A\cong\angle B\qquad\text{therefore}\qquad AC\cong BC\Rightarrow|AC|=|BC|\\\\\text{We have}\ |AC|=20;\ BC=3x-7.\\\\\text{Therefore}\\\\3x-7=20\qquad|\text{add 7 to both sides}\3x-7+7=20+7\\\\3x=27\qquad|\text{divide both sides by 3}\\\\\dfrac{3x}{3}=\dfrac{27}{3}\\\\x=9

You might be interested in
B
Anit [1.1K]
i need some friends that would b nice
5 0
3 years ago
State the value of 'x' in this equation, and explain why you know this to be true without doing any calculations.
Kaylis [27]

Answer:

x=9

if

a^b = a^c

then b=c

so in this case x=9

4 0
1 year ago
How much is a book that is regularly priced at $62.85 when it is 1/3 off?
Marina86 [1]

Answer:

$41.9

Step-by-step explanation:

divide $62.85 and get 20.95 which is 1/3 of it so then you just subtract $20.95 from $62.85 and get 41.9

3 0
3 years ago
Read 2 more answers
3. How many solutions does the system of equations have?
miskamm [114]

Answer:

oof i dont know this

Step-by-step explanation:


5 0
2 years ago
Justin Chan bought a Scion car for a price of $8,200, putting down $800 and financing the remainder with 60 monthly payments of
In-s [12.5K]
60 x $179.99 = $10,799.40 - 7,400.00 = $3,399.40 $3,399.40/$7,400.00 = 45.93 <span> close to 15%</span><span>
</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • X^2+7x+12=0, can you help me solve this
    13·1 answer
  • How do you convert 270 kph to mph?
    13·1 answer
  • My new music player has a capacity of 380 gigabytes
    10·2 answers
  • Fill in the blanks to complete the following chart. (Round to the nearest tenth.) You will not use all of the
    10·1 answer
  • 3x+9=1x what’s the slope and intercept form
    5·1 answer
  • A rectangle has length(4x+5) and breadth 3x.Find the area of the rectangle.​
    14·1 answer
  • Plz help will give brainlyest
    15·2 answers
  • The boxplot displays the grades (out of 30) that 26 students received on a quiz.
    10·1 answer
  • Brainliest for right answer
    5·2 answers
  • The temperature falls from 0 degrees to Negative 12 and one-fourth degrees in 3 and one-half hours. Which expression finds the c
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!