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
Finger [1]
3 years ago
8

If the value of "y" Varies directly with "x" and y = -8 when x = 20, find "y" if x = -4.

Mathematics
1 answer:
Neko [114]3 years ago
6 0

Answer:

Step-by-step explanation:

When y varies directly with x

y=kx x=20 y=-8

k=y/x

k=-8/20

k=-0.4

now when x=-4 find y

y=kx

y=-0.4*-4

y=1.6

You might be interested in
Find the following dates in the units given:
11Alexandr11 [23.1K]

Answer and step-by-step explanation:

a.  4 litres in 5 minutes (litres per minute)

4 litres per 5 minutes means 4/5 litres per 1 min = 0.8 litres per minutes

b. 12 litres in 45 minutes = 12/3 litres in 45/3 minutes = 4 litres per 15 minutes

60 minutes = 4*15 minutes

4 * 4 = 16 litres per hour

c. 800 kilowatt hours in 2 months

1 year = 12 months = 2*6 months

kilowatt per year = 800 * 6 = 4800 kilowatt per year

Hope this helped :3

3 0
3 years ago
Enter a positive common favor (other than 1) of the fractions numerator and denominator
Romashka [77]

Answer:

7

Step-by-step explanation:

You can divide both 14 and 21 by seven and get a whole number.

6 0
3 years ago
Read 2 more answers
Add: (-3x3 + 7x2 + 3x – 4) + (3x2 – 9x)
Vinvika [58]
7-6x you are multiplying what’s in the () then comparing like term
7 0
3 years ago
Read 2 more answers
What is the redosed fraction for 3897/1000
Nadusha1986 [10]

Answer:

3000.897

Step-by-step explanation:

3 0
3 years ago
-6y+15= -27 what is y?
stealth61 [152]

Answer:

y=7

Step-by-step explanation:

-6y= -27-15

-6y= -42

y=7

8 0
2 years ago
Read 2 more answers
Other questions:
  • If w'(t) is the rate of growth of a child in pounds per year, what does 7 w'(t)dt 4 represent? The change in the child's weight
    8·1 answer
  • Vertex and axis of symmetry f(x)=2x^2-16x-17<br> PLEASE HELP
    9·1 answer
  • I need help resolving this please.<br><br> 8=4(q-2)+4
    5·1 answer
  • For which equations is x = 9 a possible solution? Check all that apply.
    12·2 answers
  • Complete the statement below by naming the second triangle in the correct order, and
    15·1 answer
  • g Bob's farm harvests corns worth 83 thousand dollars (and nothing else). In each year, there is a 38% chance that a storm will
    7·1 answer
  • Use the figure to complete the sentence.
    5·1 answer
  • Please help me find X in the triangle.
    8·1 answer
  • Round to the nearest hundredths
    12·1 answer
  • help me!!! Write an equation of the line passing through the point (2, 8) that is perpendicular to the line 2x - 3y = 7
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!