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
ololo11 [35]
3 years ago
13

Find an equation of variation in which y varies inversely as x and y=5 and x=21. Then find the value of y when x=10.

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

Answer:

see explanation

Step-by-step explanation:

Given that y varies inversely as x then the equation relating them is

y = \frac{k}{x} ← k is the constant of variation

To find k use the condition y = 5 , x = 21

k = yx = 5 × 21 = 105

y = \frac{105}{x} ← equation of variation

When x = 10, then

y = \frac{105}{10} = 10.5

You might be interested in
I NEED HELP PLEASE 15 POINTS
ra1l [238]

Answer:

20°

Step-by-step explanation:

∡EFJ = 70°

∡JFK = 90°

So, ∡KFG = 180 - ∡JFK - ∡EFJ = 180 - 90 - 70 = 20°

8 0
2 years ago
What are the points for a 90 degree rotation counterclockwise about the origin
natulia [17]

Answer:

I think the answer is 180 degree angle

8 0
3 years ago
Help :( i came into class late ​
Setler [38]

Answer:

If this isnt right im sorry but i think that it is the last answer

sorry if i got it wrong please tell me

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
An investment of $6,599.20 earns 4.2% interest compounded monthly over 7 years. Approximately how much interest is earned on the
dmitriy555 [2]
Fv=6599.20(1+0.042/12)^12*7
Fv=8850.20
Interest earned=8850.20-6599.20
=2,251
So the answer is a
4 0
3 years ago
Read 2 more answers
Aisha knit a total of 4 centimeters of scarf over 2 nights. After 9 nights of knitting, how many centimeters of scarf will Aisha
Luda [366]

Answer:

22 cm

step by step explanation:

6 0
2 years ago
Other questions:
  • In ΔQRS, q = 1.3 inches, r = 1.6 inches and ∠S=157°. Find the length of s, to the nearest 10th of an inch.
    13·1 answer
  • Could someone explain why any umber raised to a power of zero equals to one
    12·1 answer
  • During the first hour of operation the farm stand owner sold 15% of the apples he had. On the second hour he sold 20% of the rem
    15·1 answer
  • PLEASE HELP, I DONT UNDERSTAND THIS.....Michael is laying carpet in a perfectly rectangular hall. The area of the hall is 240 sq
    14·2 answers
  • What ere the coordinates of the point on the directed line segment from (-1,7) to (7,7) that partitions the segment into a ratio
    11·1 answer
  • 8. A truck drives down a 25-meter decline. The angle of depression of the decline is
    14·1 answer
  • The value of 33 + 42 = ___.<br><br> Numerical Answers Expected!<br><br> Answer for Blank 1:
    7·2 answers
  • What is 2/5 E2? (the E is the exponent of ur wondering i couldn't type it in :)​
    13·1 answer
  • 8595 divided by 24 please help for my hw
    7·1 answer
  • The scale drawing of a rectangular city park measures 10.0 cm by 5.0 cm. The scale of the drawing is 1.0 cm = 4.5 m. What is the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!