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
Ivenika [448]
2 years ago
9

The variable x and y vary directly. Write an equation that relates x and y. Then find y when x = 12.

Mathematics
1 answer:
EastWind [94]2 years ago
5 0

Answer:

24

Step-by-step explanation:

   y=kx

at (4, 8):  8 = 4k  ⇒  k = 2

So  y=2x

when x=12, y=2 \times 12=24

You might be interested in
A manufacturing company with 450 employees begins a new product line and must increase their number of employees by 18%. How man
____ [38]

The total employees the company now have is 531.

Solution:

Beginning employees in a company = 450

Percentage of employees increased = 18%

Number of increased employees = 18% of 450

                                                       $=\frac{18}{100}\times 450

                                                       = 81

Total employees = Beginning employees + Increased employees

                            = 450 + 81

                            = 531

The total employees the company now have is 531.

3 0
3 years ago
Which of the following is true about the equation y = -5x + 10? *
madreJ [45]

Answer: The equation has a positive y-intercept

This is because the constant is +10

5 0
2 years ago
Can someone help with this math question please
hoa [83]
The only point in the solution space is that of selection ...
  C   (1, 3)

5 0
2 years ago
ALLL MY POINTS PLSSS HELPPPPP
Rama09 [41]

Rewrite the given quadratic equation in standard form: Kx 2 + 2x - 1 = 0  

Discriminant = 4 - 4(K)(-1) = 4 + 4K  

For the equation to have two real solutions, the discriminant has to be positive. Hence we need to solve the inequality 4 + 4K > 0.  

The solution set to the above inequality is given by: K > -1 for which the given equation has two real solutions.

3 0
3 years ago
Read 2 more answers
How many extraneous solutions does the equation below have? 9 over n squared +1 =n+3 over 4? 0 1 2 3
LenKa [72]
The answer is 0. While the answer for n is approximately 2.384503, there are no EXTRANEOUS solutions. Again, the answer is a.) 0
4 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone help plz?????????!
    6·2 answers
  • Find the distance if you travel at a rate of 65mph for 7 hours. hint: distance = rate time.
    6·2 answers
  • 3 décimas multiplicadas por 100 equivalen a 300 milésimas
    12·1 answer
  • Rewrite function in vertex form y=x^2+8x+16-3-16
    5·2 answers
  • In a study to determine the relationship between self esteem and eating, subjects had been randomly divided into two groups. One
    12·1 answer
  • Need help correct only<br> 6cm<br> 12cm<br> 16cm<br> 32cm<br> i think 16 but not sure
    15·2 answers
  • Can someone simplify this? (Picture attached)
    15·1 answer
  • Find the value of the expression
    12·1 answer
  • There are 100 students in 7th grade. Of those students 43 of them are in the band. What percentage of the students are in the ba
    8·1 answer
  • Please help me with this problem
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!