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
xenn [34]
3 years ago
6

When using substitution to solve a system of equations , how can you tell when a system has no solution

Mathematics
1 answer:
tatuchka [14]3 years ago
3 0

Answer:

If you have a false statement at the end.

Step-by-step explanation:

When using substitution to solve a system of equations, you can tell when the system has no solution if the equation at the end produces a false statement.

For example, at the end if you have something like 3x + 1 = 3x - 4. You would subtract 3x from both sides of the equation and be left with 1 = -4.

This is a false statement, 1 does NOT equal -4. Therefore, system of equations has no solution.

You might be interested in
A student in an introductory statistics course investigated if there is evidence that the proportion of
jek_recluse [69]

Complete question:

A student in an introductory statistics course investigated if there is evidence that the proportion of

milk chocolate M&M's that are green differs from the proportion of dark chocolate M&M's that are

green. She purchased a bag of each variety and her data are summarized in the following table:

Milk chocolate- Green:8 Not Green: 33 Total: 41

Dark Chocolate- Green: 4 Not green: 38 Total :42

a) Define the appropriate parameter(s) for this data.nd state the hypotheses for testing if the proportion of green M&M's differs for milk chocolate and dark chocolate M&M's.

b. The p-value is 0.32. Use this p-value to make a decision about these hypotheses with an alpha of 0.05. Be sure to word your decision in the context of the problem. Include an assessment of the strength of your evidence.

Step-by-step explanation:

a. P_{mc} = Proportion of milk chocolate M&M 's that are green

P_{dc} = Proportion of dark chocolate M&M 's that are green

H_{0} : P_{mc} = P_{dc}

H_{0} : P_{mc} ≠  P_{dc}

b. This p-value provides no evidence that the proportion of green candies differs for milk chocolate and dark chocolate M&M's

5 0
3 years ago
The gandhara region is the home of many portrayals of ____.
Alexandra [31]
BUDDHA. It is a cold climate region where many BUDDHA carvings, with simplistic  garments and appearance can be seen. This also exemplifies Gandhara art work that is usually influenced by roman empire.
3 0
3 years ago
A box has dimensions of 17 inches long, 1.3 feet wide, and 8 inches high. What is the volume of the box? The formula for the vol
Kaylis [27]

Answer:

176.8

Step-by-step explanation:

If you multiply all three numbers you get 176.8

3 0
4 years ago
How many 2 digit numbers are there for these cards
gregori [183]
What cards?
I don’t get it
5 0
3 years ago
One number is 3 less than 4 times a second number. The difference of the first number and twice the second number is 7. What are
Nikolay [14]

Answer:

atq= let no.be x and y

x= 4y-3.......(1)

x-2y=7....(2)

subtracting both eqn

x-x+2y=4y-3-7

2y=4y-10

-2y= -10

y=5 ........second no.

first no...x=7+2y=7+10=17.......first no....

5 0
3 years ago
Other questions:
  • 6 to the 3rd power minus 10 divided by 5
    8·1 answer
  • V + w = 11<br>2v + w = 16<br><br>Solve the system by substitution.
    6·1 answer
  • Insert brackets to make the answer correct<br> 2+3x8+4=38
    12·1 answer
  • Help on number 20 please?​
    12·1 answer
  • Can somebody help me with this
    8·2 answers
  • How many solutions are there for the system shown below?
    5·2 answers
  • Which of the following is equal to 11-2?<br><br>112<br><br>121<br><br>-121<br><br>1/112<br><br>​
    11·1 answer
  • Solve for x: -3(4x+3)+4(6x+1)=43
    8·1 answer
  • 32 + x = -12<br> What is the very first step?
    15·1 answer
  • PLEASE HELP ! Quadrilateral OPQR is inscribed in circle N, as shown below. What is the measure of ∠ROP?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!