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
Find the area of the figure below
Serhud [2]
Easy

the easiest way is to imagine that you have a rectangle with a corner cut off
the area of the figure=area of rectangle-area cut off

area that was cut off was a triangle

area of rectangle=length times width
area of triangle=1/2base times height

so we draw imaginary lines like in attachment
find area of rectangle
legnth=9 inch
width=9 inch
area=9 times 9=81 in^2

triangle
the top part is ?+5=9, so the base of triangle=4
the side is ?+4=9, so the base is 5
area=1/2 times 4 times 5=10 in^2

area=rectangle-triangle
area=81-10=71 in^2

7 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through the points (2, 1)(2,1) and (17, -17) ?(17,−17)? Write your answer in simplest
Yuliya22 [10]

Answer:

1 + +17 18

______ = ___ = m

2 + -17 -15

7 0
2 years ago
David's bedroom door is 8 feet tall and 4 feet wide. A new door would cost $8.00 per square foot. How much would a new bedroom d
Verdich [7]

Answer:

$ 256

Step-by-step explanation:

square footage of door =   8 x 4 = 32 ft^2

32 ft^2  * 8 dollar /ft^2  = $ 256

6 0
1 year ago
A store owner paid $15 dollars for a book. she marked up the price of the book by 40% to determine it's selling price.
Tcecarenko [31]
A) $15 ÷ 40% =
15×.4= 6
15+6= 21

B) $38 × .25=9.5
38-9.5=28.50

28.50×.06=1.71
28.50+1.17=30.21

I think this is how you do it. would wait for other answers as well to double check.
6 0
3 years ago
Read 2 more answers
Hal has a steel barrel with a diameter of 6 feet that can be filled to a depth of 4.6 feet with oil. What is the volume of the b
scoray [572]

Answer:

129.996 cubic feet

Step-by-step explanation:

Assuming that the barrel is a perfect cylinder, we can use the formula to find the volume:

\pi(r)^2(h)

First, we have to find the radius, which is:

D = 2r

So the radius is 3 feet, since it is half of the diameter. Then, we plug in the values.

3.14(3)^2(4.6)

Now, we solve. Exponents are first...

3.14(9)(4.6)

Now multiply left to right.

28.26(4.6)

129.996 cubic feet

Therefore, the barrel can hold 129.996 cubic feet of oil. Hope this helps you!

3 0
3 years ago
Other questions:
  • Emma is going to a concert with four friends. If she purchases all the tickets online for $183, which includes an online surchar
    7·2 answers
  • What dose this mean ???
    8·1 answer
  • Sammy has $0.37 in his pocket he only has four coins.What coins does he have in his pockets??
    9·1 answer
  • True or false: Every kite is a rhombus, but not every rhombus is a kite.
    13·1 answer
  • Complete the inequality statement with the symbol that makes it true.
    15·1 answer
  • In the​ 1970s, due to world​ events, there was a gasoline shortage in the United States. There were often long lines of cars wai
    14·1 answer
  • WhAt is the answer to 8.3x=41.5
    13·2 answers
  • Estimate and solve 4,624 ÷ 72 = ________. (2 points)<br> 66 r 22<br> 66 r 16<br> 64 r 22<br> 64 r 16
    14·1 answer
  • For each inequality draw a number line and show all points that satisfy it.
    8·1 answer
  • Pleaseeee helpppppppppp
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!