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
Law Incorporation [45]
3 years ago
11

Solve the system by substitution.

Mathematics
2 answers:
Elina [12.6K]3 years ago
5 0
D x= -9
Y=9
Because 4(-9)+45=9
I just put in each one and d got it right.
Evgen [1.6K]3 years ago
4 0
Y = -x
y = 4x + 45

   -x = 4x + 45
<u>- 4x  - 4x         </u>
 <u>-5x</u> = <u>45</u>
  -5     -5
    x = -9
y = 4x + 45
y = 4(-9) + 45
y = -36 + 45
y = 9
(x, y) = (-9, 9)

It is equal to B.
You might be interested in
Which are characteristics of table salt (NaCl)?
oee [108]

Answer:

The correct option (c) "is held together by ionic bonds".

Step-by-step explanation:

Table salt is NaCl. It is a combination of Sodium and Chlorine.

There is 1 valance electron in sodium. Its electronic configuration is 2,8,1

The electronic configuration of Chlorine is 2,8,7. It means that it needs 1 electron so that its octet gets completed.

Na transfers one electron to Cl. It becomes Na⁺. Cl gains one electron From Na. It becomes Cl⁻.

As a resuslt, Na⁺ and Cl⁻ forms. Both Na and Cl are ions. They held together by ionic bonds.

3 0
3 years ago
Two similar cylinders have heights of 75 cm &amp; 25 cm. What is the ratio of the VOLUME of the larger cylinder to the VOLUME of
castortr0y [4]
I'm not going to say I'm 100% correct.

6 0
3 years ago
What type of relationship does this pair of angles have?
avanturin [10]

Answer:

Both add up to 180 degrees

4 0
2 years ago
Read 2 more answers
George wishes to increase the percent of acid in 50 ml of a 15% acid solution in water
PtichkaEL [24]

Answer:

screw this question

Step-by-step explanation:

To change from 15% to 25% he needs to add 10%.

If the solution is 50ml then he needs to add 10% which is 5ml... But if he adds 5 ml then the solution will be 55ml total, so that doesn't make sense. He has to take some of the solution that's not acid before adding the 5ml...

3 0
2 years ago
Read 2 more answers
PLEASEE HELPP WILL GIVE BRAINLIEST
Leya [2.2K]

Answer:

134

5000

i think im right

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • mackenzie has a bag that contains 6 red marbles, 4 blue marbles and 14 yellow marbles. if she chooses one marble from ghe bag, w
    15·1 answer
  • A conservative estimate of the number of stars in the universe is 6 x 10^22. The average human can see about 3,000 stars at nigh
    13·1 answer
  • X+4y=30 system by substitution <br><br> X-2y=0
    5·1 answer
  • Suppose that a worker in Caninia can produce either 2 blankets or 8 meals per day, and a worker in Felinia can produce either 5
    14·1 answer
  • Determine two pairs of polar coordinates for the point (4, -4) with 0° ≤ θ &lt; 360°.
    7·2 answers
  • Write the following as an algebraic equation. Use x as the unknov
    5·1 answer
  • Tanyas baked goods took in 175$ To help raise money for the chorus club .Tanya need to spend 32$ for baking supplies write and e
    14·1 answer
  • 7) Samantha has saved $100 to buy a new laptop. Each month, she saves $15 towards the laptop. What expression could be used to f
    10·1 answer
  • Simplify the expression.<br> -2.2f + 0.8f - 14-5
    5·2 answers
  • e. 2y(y + 3)this is not a quiz it is an assignment that is due tomorrow and I Wil be grateful for anyhelp
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!