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
Lena [83]
3 years ago
11

WILL MARK BRAINLIEST!!!!Max and Maggie have to clean the house. It takes Max 12 hours to clean the house, while Maggie can compl

ete the task in 4 hours. Their sister says that it will take 3 hours to complete if they work together. Explain each step in solving this equation, and determine if the sister is correct or not.
Mathematics
2 answers:
VashaNatasha [74]3 years ago
4 0
Suppose there are 12 equal parts of the house to be cleaned. Max can do 1 per hour, and Maggie can do 3 per hour.

The number of units they can do together in x hours is x+3x. Since there are 12 units to do, x+3x=12. For x=3 this is true, so the sister was right!
Alex787 [66]3 years ago
3 0
The sister is correct, because if you divide 12 by 4 your answer is 3 hours.
You might be interested in
The first derivative of x^2+2y^2=16 is -x/(2y), the second is -(2y^2+x^2)/(4y^3). Find the third implicit derivative of x^2+2y^2
gtnhenbr [62]

Answer:

d³y/dx³ = (-2xy² − 3x³ − 4xy²) / (8y⁵)

Step-by-step explanation:

d²y/dx² = (-2y² − x²) / (4y³)

Take the derivative (use quotient rule and chain rule):

d³y/dx³ = [ (4y³) (-4y dy/dx − 2x) − (-2y² − x²) (12y² dy/dx) ] / (4y³)²

d³y/dx³ = [ (-16y⁴ dy/dx − 8xy³ − (-24y⁴ dy/dx − 12x²y² dy/dx) ] / (16y⁶)

d³y/dx³ = (-16y⁴ dy/dx − 8xy³ + 24y⁴ dy/dx + 12x²y² dy/dx) / (16y⁶)

d³y/dx³ = ((8y⁴ + 12x²y²) dy/dx − 8xy³) / (16y⁶)

d³y/dx³ = ((2y² + 3x²) dy/dx − 2xy) / (4y⁴)

Substitute:

d³y/dx³ = ((2y² + 3x²) (-x / (2y)) − 2xy) / (4y⁴)

d³y/dx³ = ((2y² + 3x²) (-x) − 4xy²) / (8y⁵)

d³y/dx³ = (-2xy² − 3x³ − 4xy²) / (8y⁵)

8 0
3 years ago
Read 2 more answers
Which is .333 written in its simplest fraction form?
Mama L [17]
D. 333/1000 good luck
6 0
3 years ago
Which of the following BEST defines an output? please help me, I've been stuck on this one for a while!​
NeTakaya

A statement which best defines an output is: B. an output is the result of a relation or the function rule, usually the y-values in a set of ordered pairs or on a table or graph.

<h3>What is a function?</h3>

A function can be defined as a mathematical expression that defines and represents the relationship between two or more variable, which is typically modelled as input (x-values) and output (y-values).

<h3>The types of function.</h3>

In Mathematics, there are different types of functions and these include the following;

  • Periodic function
  • Inverse function
  • Modulus function
  • Signum function
  • Piece-wise defined function

In this context, we can infer and logically deduce that a statement which best defines an output is that it's the result of a relation or the function rule, which usually are the y-values in a set of ordered pairs, on a table or a graph.

Read more on function here: brainly.com/question/9315909

#SPJ1

Complete Question:

Which of the following best defines an output?

A. An output is the value that determines another based on the relation or the function rule, usually the x-values in a set of ordered pairs or on a table or graph.

B. An output is the result of a relation or the function rule, usually the y-values in a set of ordered pairs or on a table or graph.

C. An output is a special type of relation for which there is a rule that pairs each input with exactly one output.

D. An output is a set of ordered pairs in which no y-value repeats.

3 0
1 year ago
Show that there is no rational number whose square is 5<br><br>​
lozanna [386]

Answer:

Step-by-step explanation:

Take the square root of 5, which is 2.236, aka not a rational number. It doesn't come out to a whole number so therefore there is no rational solution

4 0
3 years ago
For a class trip, 114 students are put on buses. At this rate, how many students would be on eight buses? Show your work.
vredina [299]

Answer:

Not really sure but 14.25 students seem to be the correct answer.

Step-by-step explanation:

114:8 = 14.25

3 0
1 year ago
Other questions:
  • Eleven twelves times two thirds
    12·2 answers
  • X varies directly as y, and x = 153 when y = 9. Find x when y = 13.
    8·1 answer
  • Quadrilateral ABCD is a parallelogram. If m
    6·2 answers
  • PLEASE ANSWER!!! WILL MARK BRAINLIEST :D
    11·2 answers
  • Using the slot method and multiple cases, calculate the probability that you would roll 3 sixes.
    10·1 answer
  • Pls help if u can ! For brainly
    15·1 answer
  • Please help me I need the answers!
    12·1 answer
  • The expression 200 - 16t2 models the height in feet of an object that falls from the initial height of 200 feet t seconds after
    10·1 answer
  • Hcf or LCM
    8·1 answer
  • What values do x and y have if |x|= 16, |y|= 16, and when does x and y are combined they equal 0? Explain your reasoni.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!