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
ratelena [41]
3 years ago
13

For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.

Mathematics
2 answers:
Komok [63]3 years ago
6 0

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form y/x=k or y=kx

Verify

A) For the point(10,12)

Find the value of k

k=y/x

substitute

k=12/10=1.2

B) For the point(15,18)

Find the value of k

k=y/x

substitute

k=18/15=1.2

C) For the point(20,24)

Find the value of k

k=y/x

substitute

k=24/20=1.2

so

The value of k is equal to 1.2

The equation of the direct variation is equal to

y=1.2x

therefore

<u>the answer is the option a</u>

yes; y=1.2x

padilas [110]3 years ago
4 0
The correct answer is A.
You might be interested in
Which statement about these two triangles is true?
Feliz [49]
It is th top right answer because AB = DE but the others are not but length doesn't effect the angles of abcdef
8 0
3 years ago
recent survey found that 71​% of all adults over 50 wear glasses for driving. In a random sample of 30 adults over​ 50, what is
valentina_108 [34]

Answer:

Mean = 21.3

Standard Deviation = 2.48

Step-by-step explanation:

We are given the following in the question:

p = 71​% = 0.71

Sample size, n = 30

We have to find the mean and the standard deviation of those that wear​ glasses.

\text{Mean} = np\\=30(0.71)\\=21.3

Thus, the mean of those who wear glasses is 21.3

\text{Standard deviation} = \sqrt{npq}\\=\sqrt{np(1-p)}\\=\sqrt{30\times 0.71\times (1-0.71)}\\=2.48

Thus, the standard deviation of those who wear glasses is 2.48

5 0
3 years ago
David earns $11 an hour. He was scheduled to work 35 hours. However, he picked up an additional 7 hour shift. He is paid double
zhenek [66]
You have in total 42 hours so 2 of those hours are double time so you do 40•11 and then add 22•2 (22 is the double time) so you’re answer is $484
7 0
3 years ago
Glenn and Maggie own a regional chain of juice bars and are looking to expand in the coming year. They already have fifty shops,
Vladimir79 [104]

Answer: A commercial bank.

if i could get brainliest that would be great

Step-by-step explanation:

Commercial banks are financial institutions whose functions, among many, are: offering banking services to individuals, groups and companies, to make profit. One of the roles performed by these types of financial institutions is to credit loans to individuals, small businesses, and other groups, and as such, they are the first line to which a small business, such as the one controlled by Glenn and Maggie, would go to, to request a loan to be able to open up their other branches. This bank would give them the loan and allow them to make profit, without having any ties to the banking institution, just as long as they return the investment given to them.

3 0
3 years ago
Read 2 more answers
The number of dollars in Teo's bank
mina [271]

Answer:

<em>y = $ x/3 </em>

Step-by-step explanation:

Let the amount of dollars in Teo's bank on Tuesday be $x and the amount in his bank on Friday be $y.

If the number of dollars in Teo's bank  account on Tuesday was 3 times as

much as the amount on Friday, this can be represented mathematically as;

x = 3y where y is the amount in his bank on Friday.

The amount of dollars in his account on friday will be gotten by dividing both sides of the equation by 3

3y = x

3y/3 = x/3

y = x/3

<em>Hence the amount of dollars in his account on Friday is y = $ x/3 </em>

8 0
3 years ago
Other questions:
  • Help mee please i want to pass
    8·2 answers
  • You have $3.20 in quarters and dimes. You have four fewer quarters than dimes. What would the associated system of equations loo
    13·1 answer
  • 52:PLEASE HELP Find the slope of the line that passes through the points (8,2) and (9,7)
    10·2 answers
  • A projectile is fired with muzzle speed 220 m/s and an angle of elevation 45° from a position 30 m above ground level. Where doe
    14·1 answer
  • Which of the following companies offers the greatest total employment compensation? Company A Gross pay $38,200 Insurance $3,500
    12·2 answers
  • Evaluate the expression 5x-y when x=2 and y=4
    14·1 answer
  • What is the unit price for a piece of cheese if 3.25 pounds costs $19.50?
    6·1 answer
  • Multiply 1 by 5 152 x 61 =
    9·1 answer
  • Ffffffffffffffffffff
    9·1 answer
  • Find the product of (4c-5)(7x^2m- 3x + 3)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!