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
galben [10]
3 years ago
7

You paint 1/3 of a wall in 1/4 hour. At that rate, how long will it take you to paint one wall?

Mathematics
2 answers:
jeka57 [31]3 years ago
8 0
It will take you 3/4 of an hour, or 45 minutes to paint 1 wall.
Alekssandra [29.7K]3 years ago
6 0
1/3 of a wall takes 1/4 hour to paint, by hypothesis.
So you still have 2/3 of that wall.
2/3 = 1/3 + 1/3
So T(2/3) = 1/4 + 1/4 = 2/4.

Which means that the 2/3 of the wall left will take 2/4 hours.

T(1/3) + T(2/3) = T(3/3) = 1/4 + 2/4 = 3/4

So to paint one wall, it will take you 3/4 hours.

Hope this helps! :)
You might be interested in
Marie plants 12 packages of vegetable seeds in a community garden. Each package costs $1.97. What is the total cost of the seeds
umka21 [38]

Answer:

$23.64

Step-by-step explanation:

Each package of seeds cost $1.97, and Maire bought and planted 12 packages. You would do 12 x 1.97 to get 23.64

8 0
3 years ago
Read 2 more answers
What two numbers add to 10 and multiply to -192? How do you find it?
Levart [38]
There is a way to do this algebraically using equations, but it is really messy so I am going to go over the way to do it. The way you do this is by finding whole numbers that multiply to make -192. Start with 1 and 192, 2 and 96, 3 and 64, etc and make the smaller number negative. 
The reason why you make the smaller number negative is because we are looking for what numbers add together to make a positive number (10). If the bigger number was negative, then we would get a negative sum. 
From what i could find, there aren't any whole numbers that satisfy this, and i doubt that the question would want you to find decimals for this. 

The way to find this with equations (in short) is to have to variables, x and y, and make two equations. in this case x+y=10 and xy=-192. Solve one equation for a variable and then use substitution to plug that variable into the other equation. if you do this you get really long decimals.
7 0
3 years ago
4. The elves at the North Pole could make 23 gifts per minute. How many gifts could they In make in 2 hours? ​
Leona [35]

the elvs can make 46 presents

5 0
2 years ago
What is the rate of change of the following equation? y = 5x + 4​
almond37 [142]

Answer:

5

Step-by-step explanation:

Rate of change of the equation y = 5x + 4 can be obtained by differentiating it with respect to x.

\because \: y = 5x + 4 \\  \therefore \:  \frac{dy}{dx}  =  \frac{d}{dx} (5x + 4) \\ \\    = 5 \frac{d}{dx} x + \frac{d}{dx} 4 \\  \\  = 5 \times 1 + 0 \\ \therefore \:  \frac{dy}{dx}   = 5 \\

Hence, rate of change of y = 5x + 4 is 5.

7 0
3 years ago
In an arithmetic progession T7 =20 and T13 =38,. Find the first term and the common difference. ​
dalvyx [7]
The first term is two.
The common difference is three. Hope this helps!
5 0
2 years ago
Other questions:
  • How??? I really need to know this but I can't make sense of it
    11·1 answer
  • What are the major arcs of o0 that contain point B?
    14·1 answer
  • 5^2(7) <br> Pls solve I am stuck
    5·1 answer
  • What number should be placed in the box to help complete the division calculation? can someone please do the problem (8587/12) s
    15·1 answer
  • I need to know the answer.
    7·2 answers
  • HELLPPP PLEASE WILL GIVE BRAINLIEST ​
    11·1 answer
  • Help please asap tysm! 10 brainly points! Will mark brainliest if you put in a random answer you will be reported! Tysm! &lt;3 N
    7·2 answers
  • This year jake is 47 in tall. This is 4 more than he was last year. Write and solve an equation to find out how tall jake was la
    7·1 answer
  • 3 2/3 + 2.3going on?!
    12·1 answer
  • Maëlys veut installer une étagère à 60 cm du sol.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!