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
AysviL [449]
3 years ago
7

If y varies inversely with x and y =5 when x=20 find x when y = -4​

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
7 0

Answer:

x=-25

Step-by-step explanation:

Inverse variation

xy =k

We know x and y

20*5 =k

100 =k

So the formula is

x y = 100

We know y = -4

x (-4) = 100

Divide each side by -4

-4x/-4 = 100/-4

x = -25

You might be interested in
At a restaurant a meal used to cost $9, but a new owner decided to raise the price by 13
kari74 [83]

Answer:

$10.17

Step-by-step explanation:

9 x .13 = 1.17

9 + 1.17 = 10.17

6 0
1 year ago
4x + 17 = 30<br> WHAT IS THE ANSWER
zimovet [89]

Answer:3.25

Step-by-step explanation:

30-17=13 13 divied by 4 = 3.25

6 0
2 years ago
Read 2 more answers
2) Convert the Units as shown. Round to the proper precision or accuracy. 1400 yds= Miles? * .79 miles .80 miles O 81 miles 278
MrRissso [65]

Answer:

The answer is 0.79

Step-by-step explanation:

The formula to solve this is divide the length value by 1760

3 0
2 years ago
16. Multiply the polynomials: (x + 3)(x2 – 5x + 12)
Dvinal [7]
The answer would be -3x^2+3 x + 36
8 0
3 years ago
Elena has some bottles of water that each holds 17 fluids ounces.
stiks02 [169]

Answer:

W=17

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • A rectangle has a length of 6x units and a width of 8 units
    14·2 answers
  • The explicit rule for an arithmetic sequence is a, -87+(-1.4)(n-1) What is the value of the 47th term? Round to them
    5·1 answer
  • PLEASE HELP!
    15·2 answers
  • Honestly just use this question for points∵∴∵∴∴∴∴∴∴∴∴∵∵∵∵ω¬⊆∫ω⊇∞⇄α∡∴⊕α⇔Δπβ⇄≠∡ωαФ║∫⊆Ф∞Ф
    9·1 answer
  • A scale on a map shows that 2 inches = 25 miles
    15·1 answer
  • in 2004, 34.2 million accountants e-filed income tax returns. this was 114% of the number who e-filed in 2003.
    15·1 answer
  • Select ALL the correct answers.
    15·2 answers
  • A) 3√2 - 5√8 + 2√20
    15·1 answer
  • PLEASE HELP I'M MARKING BRAINLIEST!!!!!!
    9·1 answer
  • What is the slope of the line?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!