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
sattari [20]
3 years ago
13

Vineet solved a system of equations by substitution. In his work, he substituted an expression for one of the variables and solv

ed for the value of the other. This resulted in the equation 7 = 9. What can Vineet conclude?
The solution to the system is (7, 9).
The system of equations does not have a solution.
The work must be incorrect because it is not possible to get this equation.
The system of equations has infinitely many solutions.
Mathematics
2 answers:
Mamont248 [21]3 years ago
7 0

Answer:

Step-by-step explanation:

The system of equations does not have a solution.

tester [92]3 years ago
3 0
The system of equations does not have a solution.

For example, imagine these two equations y = x + 7 and y = x + 9

Now subsitute y in the second equation with the value from the first equation:

x + 7 = x + 9

x - x + 7 = 9

0 + 7 = 9

7 = 9.

That happens because the equations represent parallel lines, which do not have a common pair of points.
You might be interested in
Solve each question mentally <br> -3x = 21
Snowcat [4.5K]
X = -7

3 • 7 = 21

-3 • (-7) = 21

If you multiply two negative numbers you’ll end up with a positive. Thus, - 3 (-7) = 21.
6 0
3 years ago
PLEASE HELP
Ronch [10]

Answer:

<em><u>1 and 5</u></em>

Step-by-step explanation:

The squares have a side length of 10 and 1 square side is the radius of the half-circles. Since there are two half-circles, find the circumference for one full circle:

C=2\pi r

Insert the radius:

r=10\\C=2\pi *10

Simplify pi:

C=2*3.14*10

Simplify multiplication:

C=6.28*10\\C=62.8

The circumference of the circles is 62.8. Now find the perimeter of the exposed squares with side length 10. There are 4 exposed sides, which equals one square. Find the perimeter:

P=10+10+10+10\\P=10+10+20\\P=10+30\\P=40

Add the perimeter of the circle and the square together:

P=62.8+40=102.8

Now see which of the options gives you the perimeter:

1. 40+20\pi =102.8  ****

2. unavailable

3. 120+20\pi =182.8

4. 300+100\pi =614.2

5. 10+10+10\pi +10+10+10\pi =102.8 ****

Finito.

7 0
3 years ago
Choose the correct solution and graph for the inequality.
Y_Kistochka [10]
The answer to question one would be "D" y<-3

For question two the answer would be "C" x<5

Hope that helps!
6 0
3 years ago
Plsssssss help me with thiss.​
Oksanka [162]

Answer:

Step-by-step explanation:

you need to mutpliy all or your numders 17 x 4 x 8 x 9 = 4896m

7 0
3 years ago
∠A=5x−18. ∠B=3x+42∘ solve for x and then find the measure of ∠A
KatRina [158]

Answer:

x = 30 ∠A = 132 degrees

Step-by-step explanation:

Set the equations equal to each other to solve for x

5x - 18 = 3x + 42

-3x        - 3x               Subtract 3x from both sides

2x - 18 = 42

    + 18  + 18              Add 18 to both sides

2x = 60                     Divide both sides by 2

x = 30

Now plug this into the equation for angle A

∠A = 5(30) − 18        Multiply

∠A = 150 - 18           Subtract

∠A = 132 degrees

If this answer is correct, please make me Brainliest!

6 0
3 years ago
Read 2 more answers
Other questions:
  • Score: 0 of 1 pt
    14·1 answer
  • 2L + 2W = 88<br> L = W + 12<br> What are the dimensions?
    13·1 answer
  • How do you find the circumference of a circle? What is the formula?
    8·1 answer
  • A scientist measures the height of 30 pine trees. When he finds the mean of these data, which phase of inferential statistics wi
    10·2 answers
  • H E L P!!! ASAP :') ( im sorry i keep on asking questions im just bad at math, 20 pts!!1!)
    14·2 answers
  • Which expression does the model represent?
    14·2 answers
  • The area of a parallelogram is 240 in. If the base is 15 inches, find the height.
    7·2 answers
  • Pls help will give brainilist
    9·2 answers
  • Which statement best represents the distance on a number line between -14 and -5?
    10·2 answers
  • Raymond earns 1795 each month and pays 53.40 on electricity to nearest 10th of a percent what percent of Raymonds earnings are s
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!