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
Semmy [17]
3 years ago
11

The volume of paint used, V liters, is directly proportional to the area, A square feet, that the paint can cover. 5 liters of p

aint can cover a wall with an area of 75 square feet.
Mathematics
1 answer:
Mariulka [41]3 years ago
3 0

<u>Question Completion</u>

a) Find the constant of proportionality.

b) Write an equation relating V and A.

c) How much paint would be needed to cover an area of 180 square feet? Answer:

(a)k=\frac{1}{15} \\\\(b)V=\frac{1}{15}A

(c)12 Liters

Step-by-step explanation:

The volume of paint used, V liters, is directly proportional to the area, A square feet, that the paint can cover.

This is written as:

V \propto A\\V=kA,$ where k is the constant of proportionality

(a)5 liters of paint can cover a wall with an area of 75 square feet.

V=5 liters, A=75 square feet.

Substitution into V=kA

5=75k

k=5/75

\text{Constant of proportionality, k}=\dfrac{1}{15}

(b)Substitution of k=\dfrac{1}{15} into V=kA

The equation relating V and A is:

V=\frac{1}{15}A

(c)If A=180 Square feet

Volume of paint needed,

V=\frac{1}{15} X 180\\=12$ liters

You might be interested in
Solve 5x=125.<br> X=25<br> x=3
Zolol [24]

Answer: X = 25

Step-by-step explanation: 5 * 25 = 125

5 0
3 years ago
.
weqwewe [10]

Answer:

b. g(x) = ƒ(3x)

Step-by-step explanation:

We can use the graph to find the transformation which has been performed to obtain g.

g(x) is more stretched than x which means the function values are multiplied by some integer to obtain g(x). <u>This eliminates the options a and d.</u>

Now to check which factor is used to transform the function f(x) we can divide the x-coordinates of the points of new and old function.

So,

6/2 = 3

-6/-2 = 3

The function is stretched by a factor of 3.

Hence, the correct answer is:

b. g(x) = ƒ(3x)  ..

6 0
2 years ago
What is the point of comparing prices?
kherson [118]

Answer:

To know which is better to pay.

Step-by-step explanation:

Good Luck

6 0
2 years ago
Read 2 more answers
The graph of a line goes up and to the right when:
Afina-wow [57]
<h3><u>Answer:</u></h3>

Option: C is the correct answer.

c) the coefficient of x is positive

<h3><u>Step-by-step explanation:</u></h3>

We know that graph of a line goes up and to the right when the coefficient of x is positive.

Since we know that when a line goes up and to the right this means that the line is increasing and hence we will get a positive slope of the line and we know that the slope intercept of a line is given as:

y=mx+c

as m is positive this means that:

the coefficient of x is positive.

Hence, the correct answer is:

c) the coefficient of x is positive

4 0
3 years ago
Read 2 more answers
Noooooooo Liiiiiiiinnnnnkkkkksssssss... Tanisha and Bess are. Tanisha is half as old Bess. Bess is 6 years older than Tanisha.
goblinko [34]
The answer is D. Tanisha is 6, Bess is 12
5 0
2 years ago
Other questions:
  • Autumn is paying for college in monthly installments. The college requests that a $1000 down payment be made. Autumn will then c
    13·1 answer
  • Enter the correct unit of measurement to complete the conversion
    5·2 answers
  • What does 2/5y-4+7-9/10y=
    11·1 answer
  • Megan has 7 coins that make one pound. The coins are of only two different kinds. What are the 7 coins?
    15·2 answers
  • The diagram shows a dilation of segment AB. Which
    10·2 answers
  • ASAP WILL GIVE BRAINLIEST Which two numbers below have a least common multiple of 48?
    11·2 answers
  • NEED HELP ASAP<br> Thanks+ BRAINLIST Only for correct answers
    8·1 answer
  • John owns a computer repair service. For each computer he charges $50 plus $45 per hour of work. linear equation
    12·1 answer
  • Erynn glued k seashell on a photo frame. She made 5 such photo frames. How many seashells did she use?
    15·1 answer
  • Given the equation: x^2+6x+8=0
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!