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
Crank
2 years ago
10

Substitution 4x+y=-5 -2x-8y= -20

Mathematics
1 answer:
erma4kov [3.2K]2 years ago
7 0

Answer:

35 over 6 an 10 over 3

Step-by-step explanation:

You might be interested in
Which relationship describes angles 1 and 2?
nirvana33 [79]
The answer to this is Complementary Angles. 
3 0
3 years ago
Read 2 more answers
In the diagram, the straight line ABC is parallel to EFG and DB is parallel to FC. Given that ABD=38 degrees and DFE=62 degrees.
Elanso [62]

Based on the calculations, the measure of angle BDF and CFG are 100° and 38° respectively.

<h3>The condition for two parallel lines.</h3>

In Geometry, two (2) straight lines are considered to be parallel if their slopes are the same (equal) and they have different y-intercepts. This ultimately implies that, two (2) straight lines are parallel under the following conditions:

m₁ = m₂

<u>Note:</u> m is the slope.

<h3>What is the alternate interior angles theorem?</h3>

The alternate interior angles theorem states that when two (2) parallel lines are cut through by a transversal, the alternate interior angles that are formed are congruent.

Based on the alternate interior angles theorem, we can infer and logically deduce the following properties from the diagram (see attachment):

  • <ABD = <BDH = 38°
  • <DFE = <HDF = 62°

For angle BDF, we have:

<BDF = <BDH + <HDF

<BDF = 38° + 62°

<BDF = 100°.

Since angles BDF and DFC are linear pair, they are supplementary angles. Thus, we have:

∠BDF + <DFC = 180°

<DFC = 180 - ∠BDF

<DFC = 180 - 100

<DFC = 80°.

For angle CFG, we have:

∠DFE + <DFC + <CFG= 180°

<CFG = 180° - ∠DFE - <DFC

<CFG = 180° - 62° - 80°

<CFG = 38°.

Read more on parallel lines here: brainly.com/question/3851016

#SPJ1

4 0
2 years ago
Which postulate or theorem can be used to
sveticcg [70]

Answer:

AA Similarity Postulate

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

step 1

Verify the proportion of the corresponding sides

\frac{PS}{PQ}=\frac{PT}{PR}

substitute

\frac{45}{20}=\frac{36}{16}

2.25=2.25 ----> is true

Corresponding sides are proportional

Triangle PQR is similar to Triangle PST

That means

Corresponding angles must be congruent

side QR is parallel side ST

and

m\angle PQR=m\angle PST ----> by corresponding angles

m\angle PRQ=m\angle PTS --> by corresponding angles

so

PQR is similar to PST by AA Similarity Postulate

4 0
3 years ago
Find the sum between 309 and 908
Artemon [7]

Answer:

1217 I think

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
How far is the sun from earth in scientific notation
Feliz [49]

Answer:

1.5 × 1011 m

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • The school is building a new pool with locker rooms. The locker rooms have the same area. What is the total area of the pool and
    5·1 answer
  • Gemma has 24 balls out of 24 balls 12 are yellow for pink and the rest are red what is the ratio of the number of red balls to t
    15·2 answers
  • What number is between 75 divded by 4?
    11·1 answer
  • What is the surface area of the rectangular prism? ( In net form)
    10·1 answer
  • Find the LCM of the pair of polynomials.
    6·1 answer
  • At the amusement park each students is given $16 dollars for food. This covers the cost of 2 meals plus $4 for snacks. how much
    5·2 answers
  • This photo is the problem I have to solve for x help please
    13·2 answers
  • What is the answer to t+6≤10?
    9·1 answer
  • Calculate the slope given two points (2,-4) and (0, -8)
    10·1 answer
  • Help!!!!PLEASE &amp; THANKS
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!