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
What's 65-70 days in weeks
dusya [7]

Answer:

About 9-10 weeks

Step-by-step explanation:

70/7= 10

4 0
3 years ago
Read 2 more answers
The scatterplot shown includes the (blue) least-squares regression line, whose equation is y = .975 + .005x, where y is calories
ziro4ka [17]

The scatterplot shown includes the (blue) least-squares regression line, whose equation is y = .975 + .005x, where y is calories (in thousands) and x is years after 1960. Choose the correct statement.

Answer: In the given regression equation, the calories are in thousands. Therefore, the slope 0.005 (0.005 x 1000 =5 calories)  means the consumption is increasing at a rate of 5 calories per year.

Hence the option a. Consumption is increasing at a rate of 5 calories per year. is correct

4 0
3 years ago
Read 2 more answers
4,11,7,14,10,17,.....?
jek_recluse [69]

Answer:

4,11,7,14,10,17,13,20,16,23,19,26........

8 0
2 years ago
Whats the awnser is it 600
bekas [8.4K]
The answer will be C 520
5 0
3 years ago
Read 2 more answers
Help pls!! Solve the inequality x + 13 < 0. Give your answer in interval notation.
kotegsom [21]

Answer:

-14

Step-by-step explanation:

x=-14+13

-1

0 is biger than -1

5 0
3 years ago
Read 2 more answers
Other questions:
  • Find the area of the triangle defined by the coordinates (7, 1), (0, 10), and (9, 4). (To the nearest tenth)
    12·2 answers
  • Find Lateral Surface area
    11·2 answers
  • The function f(x) = 10(1.015)* shows the balance in a savings account as time increases. What does the 10 represent?
    8·1 answer
  • Multiply 2 1/2 * 3/5 in simplest form show work
    8·2 answers
  • Help please! Could you put an explanation as well?
    7·1 answer
  • Hmmmmmmmmm. Let's see....
    6·2 answers
  • B. 20 cups of apple
    15·1 answer
  • What is 1.45 x 45.455.473. After multiplying add 5.
    11·2 answers
  • Would someone mind helping me? 20 points for a great and correct answer!<br> Thank you!
    7·2 answers
  • Year 11 math methods, help pls
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!