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
8090 [49]
3 years ago
10

For what value of k will these pairs of simultaneous equations have no solution?

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
4 0
Kx-3y=k
y=4x+1 ( we will put it in 1st equation )
kx - 3 (4x+1)=k
kx - 12 x - 3 =k
kx - 12 x = k+3
x(k-12) = k+3
x=\frac{k+3}{k-12}
Also y=\frac{5k}{k-12}
We can not divide with zero.
k-12=0
k=12
For k= 12 equations have no solutions.
You might be interested in
Proving triangles similar
goldfiish [28.3K]

Answer:

x=11

Step-by-step explanation:

You do 38/3x+3 and 19/x+7 and then cross mulitply and get 57x+57=38x+266. Then yoy subtract 57 from 266 and get 57x=38x+209. Now you have to subtract 38 from 57 and then answer will be 19. So now you have 19x=209. Finally you divide 209 by 19 and get x=11. Good luck!

6 0
3 years ago
keith is an independent filmmaker . hes planning to serve pizza and sub sandwiches at his first film debut . the number of sandw
tamaranim1 [39]

Answer:

35 sandwiches

Step-by-step explanation:

62÷2=31

31+4=35

3 0
3 years ago
Can someone plz help me i will thank u so much
klemol [59]

Answer:

2 hours and 29 minutes

Step-by-step explanation:

if you change 9 hours to minutes you get 540 plus 17 equals 557. if you turn 6 hours to minutes it's 360 plus 48 equals 408. 557 minus 408 equals 149 minutes. Now if you convert it to hours and minutes you need to divide by 60. So if you divide it you get 2 hours and 29 minutes. hope this helped! :)

4 0
3 years ago
Find the length of each segment. SEE EXAMPLES 1 AND 2
wlad13 [49]

The lengths of the line segments are summarized in the following list:

  1. DF = 3
  2. DE = 8 / 3
  3. FG = 3
  4. FH = 9 / 2
  5. GH = 3 / 2
  6. EH = - 11 / 6
<h3>How to calculate the length of a line segment based on point set on a number line</h3>

Herein we have a number line with five points whose locations are known.  The length of each line segment is equal to the arithmetical difference of the coordinates of the rightmost point and the leftmost point:

DF = - 1 - (- 4)

DF = 3

DE = (- 1 - 1 / 3) - (- 4)

DE = 3 - 1 / 3

DE = 8 / 3

FG = 2 - (- 1)

FG = 3

FH = (3 + 1 / 2) - (- 1)

FH = 4 + 1 / 2

FH = 9 / 2

GH = (3 + 1 / 2) - 2

GH = 1 + 1 / 2

GH = 3 / 2

EH = (3 + 1 / 2) + (- 1 - 1 / 3)

EH = - 2 + (1 / 2 - 1 / 3)

EH = - 2 + 1 / 6

EH = - 11 / 6

To learn more on lengths: brainly.com/question/8552546

#SPJ1

7 0
1 year ago
Of the 600 sixth graders at Melville Middle School, 80% want more field trips. How many students want more field trips? Use the
irga5000 [103]

Answer:

480 students want more field trips.

60 students is 10%.

Step-by-step explanation:

There are 600 students, and 80% want more field trips.

80% of 600 is 0.8*600 = 8*60 = 480 students.

480 students want more field trips.

6 0
2 years ago
Other questions:
  • It's in Danish but I will translate it for you. :)
    6·1 answer
  • Can u guys PLEASE answer this question ASAP. find the gradient and the y intercept of y=-2x and graph it
    9·1 answer
  • Find the interest due on $1,200 at 8% for 240 days. (Remember that for bank interest purposes, a year is considered to have 360
    6·2 answers
  • Which route must use all of the vertices of a vertex-edge graph? (Check all that apply.)
    9·2 answers
  • The concurrency of which lines create the Centroid?
    9·1 answer
  • Find the number of square inches in one square foot.<br> 144<br> 12<br> 24
    9·2 answers
  • What are the first three terms of the sequence defined by the following equation?
    9·2 answers
  • The Venn diagram shows all of the elements in sets A, B and ξ. Find the elements in (A ∩ B) U (A U B)’
    15·1 answer
  • Natasha bought a pair of boots for $64.73. How much change did Natasha get back if she gave the cashier $80.00?(NEED REALLY SOON
    12·1 answer
  • sal is mixing plant food for his garden the plant food requires 5 and 1/2 gallons of water but sal's measuring container has mar
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!