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
olchik [2.2K]
3 years ago
15

Find value of x. using geometry

Mathematics
2 answers:
Ronch [10]3 years ago
5 0

Answer:

10.5

Step-by-step explanation:

3x - 9 = x + 12

Subtract x from both sides

2x - 9 = 12

ad 9 to both sides

2x = 21

Divide both sides by 2

x = 10.5

Shtirlitz [24]3 years ago
5 0

Answer:

these \: sides \: are \: equal \: (rhombus) \\ x + 12 = 3x - 9 \\ 2x = 21 \\ x = 10.5

You might be interested in
A pie takes 2/3 of an hour to bake if a pie is put into the oven at 7:30 at what time does it need to be taken out.
soldier1979 [14.2K]
Convert hour to minutes:
2/3 hours = 2/3 x 60 = 40 mins

                   30 mins                    10 mins
   |-----------------------------|--------------------------------|
7.30                             8.00                               8.10

Answer: 8:10

6 0
4 years ago
Read 2 more answers
An investor has an account with stock from two different companies. Last year, her stock in Company A was worth $5990 and her st
GenaCL600 [577]

Answer: 14.38%

Step-by-step explanation:

Worth of stock in Company A = $5990

Percent decrease = 20%

New worth = $5990 - (20% × $5990)

= $5990 - (0.2 × $5990)

= $5990 - $1198

= $4972

Worth of stock in Company B = $2450

Percent decrease = 8%

New worth = $2450 - (8% × $2450)

= $2450 - (0.08 × $2450)

= $2450 - $196

= $2254

Previous total worth = $5990 + $2450

= $8440

Total worth = $4972 + $2254

= $7226

The total percentage decrease in the investor's stock account will be:

= [($8440 - $7226) / $8440] × 100

=( $1214 / $8440) × 100

= 0.1438 × 100

= 14.38%

3 0
3 years ago
Read 2 more answers
Brand a has a box of 42 forks for $2.37 brand b has a box of 72 forks for $3.57 find the unit price for each brand then state wh
victus00 [196]
Brand a: per fork is 0.06 cents.

Brand b: per fork is 0.05

Choose brand B!
4 0
4 years ago
Prove that two non-zero vectors are collinear if and only if one vector is a scalar multiple of the other.
erastovalidia [21]

The Prove that two non-zero vectors are collinear if and only if one vector is a scalar multiple of the other is given below.

<h3>What are the proves?</h3>

1.  To know  collinear vectors:

∧ ⁻a ║ ⁻a

If  ⁻b = ∧ ⁻a

then |⁻b| = |∧ ⁻a|

So one can say that  line ⁻b and ⁻a are  collinear.

2.  If ⁻a and ⁻b  are collinear

Assuming |b| length  is  'μ' times of |⁻a |

Then | 'μ' ⁻a| = | 'μ' ⁻a|

So  ⁻b = 'μ' ⁻a

Learn more about vectors  from

brainly.com/question/25705666

#SPJ1

3 0
2 years ago
Marla has a piece of felt that is 1/3 of a large circle. She cuts the piece of felt in half from the center point of the circle.
LekaFEV [45]
1/3 of the large circle, assuming like 1/3 like pizza cut
then cut into 1/2 of that, assuming again like pizza cut

1/2 of what it was=1/2 of 1/3=1/6 of original


original=whole circle
1/6 of whole circle=1/6 of 360=360/6=60

answer is 60 degrees
6 0
3 years ago
Other questions:
  • Which two properties of equality could Zoe use to finish solving for x
    15·1 answer
  • a bag contains 5 blue balls, 4 red balls, and 3 orange balls. if a ball is picked from the bag at random, what is the probabilit
    5·2 answers
  • Choose the correct slope of the line that passes through the points (1, −3) and (3, −5).
    12·1 answer
  • 164 less than the product of 82 and a number is 738.
    5·1 answer
  • Sales tax is 6% using only one term write an expression to represent the discounted price of the phone including tax.
    5·1 answer
  • 1
    5·1 answer
  • Solve and graph and plot this on the line
    9·1 answer
  • Could someone help me with this?
    9·1 answer
  • Kate and Elena were playing a card game. The stack of cards in the middle had 25 cards in it to begin with. Kate added 5 cards t
    5·1 answer
  • 3 Select the correct answer. Given: Prove: Statements Reasons 1. given 2. application of the slope formula 3. distance from to e
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!