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]
3 years ago
9

What is the value of x? Enter your answer in the box. x =

Mathematics
2 answers:
brilliants [131]3 years ago
4 0
First set up a proportion because they are similar triangles:
9/3x-20 = (72+9)/(56+3x-20)
9/3x-20 = 81/3x+36
9(3x+36) = 81(3x-20)
27x+324 = 243x-1620
1944 = 216x
x = 9
MArishka [77]3 years ago
3 0

Answer:

Step-by-step explanation:

9 cm/72 cm=3x-20/56

3x-20=56/8. (9÷72=1/8)

3x-20=7

3x=7+20

3x=27

x=27/3

x=9

You might be interested in
The manager of an apartment building increases the monthly
N76 [4]

Answer:

The answer is 513

6 0
3 years ago
Read 2 more answers
I'm pretty sure this is easy for some of you but not me!
saw5 [17]

Answer:

The possible outcomes are H1, H2, T1, and T2

Step-by-step explanation:

You can result in Heads and one, Heads and two, Tails and one, or Tails and two. Hope this helps!

5 0
3 years ago
What is the simplified form of each expression?<br><br> 7x^–8 × 6x^3
klio [65]
7*6*x^-8*x^3     
42x^-8+3                    (bases same powers add)
42x^-5
1/42x^5
<span>so the simplified </span>form<span> of 7x^-8*6x^3 is=1/42x^5</span>
7 0
3 years ago
What is the explicit rule for this geometric sequence?<br> a1=2/3;an=9. An-1
Mazyrski [523]

THE ANSWER IS B BECAUSE I TOOK THIS QUIZ ALREADY

4 0
2 years ago
Laura is three times as old as Luci. In 5 years, the sum of their ages will be 30. What are the current ages of Laura and Luci?
Inga [223]
Firstly you would do 30 - 10 = 20, so their ages combined is 20, Laura has to be 15, and Luci has to be 5.

Second, 4 years ago, Peter was 15 and Sylvia was 5, and also in 5 years Sylvia will be 14 and Peter will be 24.

Hope this helps.
7 0
3 years ago
Other questions:
  • The length of your desk is 16 in. more than its width. The perimeter is 104 in. What are the dimensions of your desk?
    13·2 answers
  • What is the volume for a hemisphere.
    15·2 answers
  • 4. Which coordinate represents the point of
    14·1 answer
  • 3(b + 5) = 4(2b - 5)
    6·2 answers
  • A card is drawn from a well-shuffled deck of 52 cards. Find P(drawing a face card or a 4). A face card is a king, queen, or jack
    8·2 answers
  • Is this function odd or even and why
    12·1 answer
  • I need help with this <br><br> look at picture <br><br> Complementary angles
    12·2 answers
  • NIOS/गणित -x
    10·2 answers
  • SOLVE THIS PROBLEM ASAP PLS
    12·1 answer
  • find equations of the lines that passe through the given point and are parallel to and perpendicular to the given line Y +4 =0 (
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!