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
kiruha [24]
3 years ago
14

3x + ky = 8

Mathematics
1 answer:
djyliett [7]3 years ago
3 0

Answer:

a) 3x + ky = 8

ky = 8 - 3x

x – 2ky = 5

x - 2(8 - 3x) = 5

x - 16 + 6x = 5

7x = 21

x = 3 (shown)

b) x-2ky = 5

sub x = 3, y = 1/2

3-2k(1/2) = 5

-2k = 2

k = -1

You might be interested in
Evaluate x (5-y) ; use x=6,and y=1​
Zolol [24]

Answer:

24

Step-by-step explanation:

x (5-y)

Let x=6,and y=1​

6(5-1)

PEMDAS says parentheses first

6(4)

24

6 0
3 years ago
Can y’all help me on question 20?!
denis23 [38]

Answer:

yes I can help you but ???

8 0
3 years ago
Read 2 more answers
Solve for x and y 5x + 3y=35, 2x+4y=28​
Tatiana [17]
The answer would be:

y = 5

x = 4
5 0
3 years ago
Read 2 more answers
Which inequality represents the sentence? The difference of seven and two tenths and a number is more than twenty nine. 7. 2 - n
Slav-nsk [51]

The inequality which represent, the difference of seven and two tenths and a number is more than twenty-nine, is

7.2-n > 29

<h3>What is the inequality equation?</h3>

Inequality equation is the equation in which the two expressions are compared with greater than, less than or other inequality signs.

Inequality is represented with the greater then(<), less then(>) or with the other inequity signs like less than equal to \leq or greater than equal to \geq.

Tenth is written as the fractional part of the number 10. The value of one tenth is equal to 1/10 or 0.1.

The sentence given for the inequality expression is, that the differences of seven and two tenths, and a number is more than twenty-nine.

The number seven and two tenths can be written as,

7\dfrac{2}{10}

Suppose the unknown number is n.  Now, the differences of seven and two tenths, and this number (<em>n</em>) is more than twenty-nine.  The more than word means, the greater than sign for equation. Thus, it can be expressed as,

7\dfrac{2}{10}-n > 29\\\dfrac{72}{10}-n > 29\\7.2-n > 29

Hence, the inequality which represent, the difference of seven and two tenths and a number is more than twenty-nine, is

7.2-n > 29

Learn more about the inequality equation here:

brainly.com/question/17724536

7 0
3 years ago
A figure is shown with parallel lines a and b. What is the measure, in degrees, of ∠r?
Novay_Z [31]

Answer:

42 degrees

Step-by-step explanation:

48 and r are equal.

The box means right angle, or 90 degrees

180-90-48=42 degrees

3 0
3 years ago
Read 2 more answers
Other questions:
  • The total of 36 78 198 475 and 620
    9·2 answers
  • Find the value of x, rounded to the nearest tenth​
    8·1 answer
  • Find the ares of a sector with the central angle of 200 and a diameter of 5.3 cm. Round to the nearest tenth
    7·1 answer
  • Seven people enter the elevator on the first floor of a 12 story building. What is the probability that no two will get off on t
    8·1 answer
  • I need help ! Sorry again for the blur
    8·1 answer
  • You purchase a $220 airline ticket. you have a discount code to recieve 10% off. There is 10.5% service charge added to the tota
    11·2 answers
  • PLEASE HELP ME THIS IS DUE TODAY AND I WILL MARK BRAINLEST.
    13·1 answer
  • Help? im not really sure how to do this :(
    11·1 answer
  • Solve for x. <br><br> x/6 =2 <br><br> A.x=3<br> B.x=-12<br> C.x=12
    14·2 answers
  • What are the steps to solving this?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!