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
4vir4ik [10]
3 years ago
13

Number 27.

Mathematics
1 answer:
atroni [7]3 years ago
5 0
<h3>Answer:</h3>

none of these has "no solution"

<h3>Explanation:</h3>

A. The solution is (8/3, 3)

B. The second equation is -1/2 times the first, so these describe the same line. The system has an <em>infinite number of solutions</em>.

C. The solution is (-4, -2)

D. The solution is (4, -2)

E. The second equation is 2 times the first, so these describe the same line. The system has an <em>infinite number of solutions</em>.

_____

A system of equations will have "no solution" when it describes parallel lines—lines that do not intersect. In standard form, such equations are recognizable by their different constants. For example,

  • 3x -4y = -4
  • 3x -4y = 20 . . . . . . 20 is different from -4

have different constants, so the equations describe parallel lines.

We could multiply one of these by -2 and the system would still be "inconsistent"—having no solution.

  • 3x -4y = -4
  • -6x +8y = -40
You might be interested in
The perimeter of a regular hexagon is 78 cm .What will be the length of each side?
k0ka [10]

Answer:

13 cm

Step-by-step explanation:

78/6=13

7 0
2 years ago
Read 2 more answers
Joey had 26 game cards. His friend Richard gave him some more, and now Joey has 100 cards. How many cards did Richard give to Jo
Roman55 [17]

Given:

Joey had 26 game cards.

His friend Richard gave him some more, and now Joey has 100 cards.

To find:

How many cards did Richard give to Joey?

Solution:

Let x be the number of cards that Richard give to Joey.

Joey had 26 game cards.

Now, the total cards joey has =26+x

Joey has total 100 cards.

26+x=100

x=100-26

x=74

Therefore, Richard gave him 74 cards.

3 0
3 years ago
WHAT TWO EQAUL NUMBERS ADD TO THE EVEN NUMER 40
Mars2501 [29]

Answer:

20

Step-by-step explanation:

20+20=40

7 0
2 years ago
which equations are equivalent to 3/4+m=-7/4 check all that apply m=10/4 m=-10/4 m=-5/2 11/4+m=-1/4 -5/4+m=-15/4 m+2=-0.5 Help f
Alecsey [184]

Answer:

The correct choices are; B,C,E, and F.

Step-by-step explanation:

The given equation is;

\frac{3}{4}+m=-\frac{7}{4}

We solve for m to obtain:

m=-\frac{7}{4}-\frac{3}{4}=-2.5

We also solve the remaining equations to see which ones give the same result.

A: m=\frac{10}{4} =2.5

B:m=-\frac{10}{4} =-2.5

C:m=-\frac{5}{2} =-2.5

D: \frac{11}{4}+m=-\frac{1}{4}

m=-\frac{1}{4}-\frac{11}{4}=-3

E: -\frac{5}{4}+m=-\frac{15}{4}

m=-\frac{15}{4}+\frac{5}{4}=-2.5

F: m+2=-0.5

m=-0.5-2=-2.5

The equivalent equations are; B,C,E, and F.

3 0
3 years ago
Read 2 more answers
1.64*10^0/2.0*10^2 in scientific notation
jarptica [38.1K]
<span>1.64*10^0/2.0*10^2 in scientific notation

</span>1.64 * 10^0 : 2.0 * 10^2= (1.64:2.0) * 10^0:10^2= 0.82 * 10 ^{0-2} =  \\  \\ 0.82 * 10 ^{-2} =0.82 * \frac{1}{10^2} =0.82 * \frac{1}{100} =0.0082=  \boxed{ 8.2 * 10^{-3} }<span>
</span>
5 0
3 years ago
Other questions:
  • Write an expression for the sequence of operations described below. triple u, then multiply t by the result
    8·1 answer
  • I found a place that will give me 20% discount if I spend over $50.My bill $75.How much money will I save? What is my final bill
    6·1 answer
  • What is the common difference of the arithmetic sequence 5 8 11 14
    6·2 answers
  • A girl is snorkeling 1 meter below sea level and then dives down another 4.5 meters. How far below sea level is the girl?
    8·1 answer
  • I need brainly help with this math problem I reward with brainiest
    5·1 answer
  • A fair dice is rolled. Work out the probability of getting a number less than 5. Give your answer in its simplest form.​
    15·1 answer
  • On a coordinate plane, how are the locations of the points (1 , -5) and (-1 , 5) related
    5·1 answer
  • Compare Marcella's possible earnings of ​Office Essentials t​ o her possible earning at ​Everything Office. ​If her goal is to e
    13·1 answer
  • Area of the shaded segment= <br>​
    9·1 answer
  • A number multiplied by 2 is no more than 12
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!