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
Furkat [3]
3 years ago
13

Got a fairly simple looking system of equations, 2k+4y=20, and 3x+6y=30 Don't understand how to prove what values of k provide -

1 solution - no solutions - and many solutions
Mathematics
1 answer:
Leya [2.2K]3 years ago
6 0

Answer:

2kx+4y=20 ⇒ kx+2y=10

3x+6y=30 ⇒ x+2y= 10

k is the coefficient of x, so it is the slope of the line

  • when k=1, both equations will be same, then there are many solutions
  • when k=0 there is one solution
  • when k is anything different, then the lines will be parallel, so no solutions
You might be interested in
Plz help, will give brainliest.
motikmotik

Answer:

1) X = 10 Therefore, 10 + 2 + 10 = 22.

2) B = 2 Therefore, 15 = 8(2) - 5 + 2(2)

3) B = -0.9 Therefore, -10 + 4(3(-0.9) + 10) = 19.

7 0
3 years ago
How many inches in 7 miles?
alexandr402 [8]

Answer:

443520

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A manufacturing company with 450 employees begins a new product line and must increase their number buy 18% how many total emplo
Soloha48 [4]

Answer:

After increasing their employees by 18% they will now have 531 total employees.

Step-by-step explanation:

0.18 x 450 = 81

81 + 450 = 531

7 0
3 years ago
jen wants to tile the floor of her kitchen. The floor is rectangular and measures 12 feet by 8 feet. if it costs $2.50 per squar
alexgriva [62]
Answer:

$240

Explanation:

12 × 8 = 96 _________ area in square feet

96 × 2.50 = 240 _________ in dollars

6 0
3 years ago
What is 16 times the square root of 75 to the power of eight big brain
e-lub [12.9K]

Answer:

506250000

good luck ! :)

7 0
3 years ago
Other questions:
  • Can someone please help????? What is 25% off of $23.99???
    8·1 answer
  • Solve for x<br> Can someone please check my answer?? Thx:)
    11·1 answer
  • A store is having a sale in which all items are 20% off. If p is the original price of an item, then the equation p - 0.2 = 0.8
    15·2 answers
  • The first step of Elimination in solving a system is to find opposites of one of the variable terms. Explain in your own words,
    11·2 answers
  •  Kiba and Akamura went out to eat. Their bill was $ 59.76. If Kiba leaves a 7% tip and 8% tax, how much did he pay in total?
    11·1 answer
  • Please help!! i need to have this assignment done in 45 mins, thanks for the help :D
    9·2 answers
  • Tyler is shooting 65% from the free
    13·1 answer
  • Find the height of the building shown.
    12·1 answer
  • QUIZ: Compare Dot Plots What is the median value of the data set shown on the line plot? Enter your answer in the box. ​
    12·1 answer
  • Please help i’m failing this class so bad
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!