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
11111nata11111 [884]
3 years ago
11

It takes 28 minutes for 7 people to paint 7 walls how many minutes does it take for 14 people to paint 14 walls

Mathematics
2 answers:
Setler [38]3 years ago
6 0

Answer:

56 because you have to multiply 28 times 2

mart [117]3 years ago
6 0

Answer:

28

Step-by-step explanation:

Idk that's what Khan Academy said

You might be interested in
The volume V of a fixed amount of a gas varies directly as the temperature T and inversely as the pressure P. Suppose that V=160
dsp73

Answer:

Volume = 90 cm³

Step-by-step explanation:

Given:

The volume 'V' of a fixed amount of gas is directly proportional to the temperature 'T' and inversely proportional to the pressure 'P'.

Initial volume is, V_1=160\ cm^3

Initial temperature is, T_1=320\ K

Initial pressure is, P_1=12\ kg/cm^2

Final temperature is, T_2=240\ K

Final pressure is, P_2=16\ kg/cm^2

Final volume is, V_2=?

As per question:

V\propto\frac{T}{P}

Therefore,

\frac{PV}{T}=Constant

Or, we can write the above as:

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}\\\\\frac{12\times 160}{320}=\frac{16\times V_1}{240}\\\\6=\frac{V_1}{15}\\\\V_1=15\times 6=90\ cm^3

Therefore, the final volume is 90 cm³.

7 0
3 years ago
Find the slope of the line please help​
Alex777 [14]

Answer:

m = -1/3

Step-by-step explanation:

There are two ways that you can use to get this answer.

The first way is to use the graph. You can see that to get from Point A to Point B, the dots go over 1 and down 3. For the fraction, you put the amount that you go to the side (1) over the amount you go down (3) to get 1/3. Since the points go down gradually, the slope is negative, so 1/3 becomes -1/3.

The second way is to take the two points, (1, 4) and (2, 1) and subtract them. First, subtract the x-coordinate from Point B from Point A to get -1. Then do the same thing with the y-coordinates to get 3. Put the -1 over 3 because x comes before y, and you have your slope.

I hope this helped :)

8 0
3 years ago
Assuming part a is correct, how do you do b and c?
zubka84 [21]

Step-by-step explanation:

B. Yes, we are 99% confident that the population mean is within the interval.

C. Yes, 225 is below the interval minimum, so it is reasonable to conclude the average cholesterol level is greater than 225 mg/dl.

D. No.  Increasing the sample size would decrease the margin of error, so the ends of the interval would move closer to the sample mean of 251.9.  So the interval minimum would still be higher than 225.

8 0
3 years ago
A basketball player made 17 out of 20 free throws at practice. What percent of the free throws did the player make? [Write the n
saw5 [17]
He made 81.5% of the throws at practice
6 0
2 years ago
Please Help. 50 points. ​
lara [203]

Answer:

They are both right angles and they both have a measure of 28°.

Step-by-step explanation:

angle A and angle B are both right angles (90°), and they both have a side measuring 28°. For the missing sides of both the measurement should be 62°.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Solve 35x+25=40x+0 please thank you with steps
    11·1 answer
  • A manufacturer finds that in a random sample of 100 of its CD players, 96% have no defects. The manufacturer wishes to make a cl
    11·1 answer
  • Kaitlyn is interviewing applicants for an open job position in her department. During the interview process, applicants are requ
    13·1 answer
  • What is the answer to 1.43 x -19/37
    10·1 answer
  • hi please help asap (20 points) and can you please explain a tool that i can use to solve this problem so that i can study
    14·1 answer
  • 338+35<br> Hehejdhdbdhchdsjjxxjdjdjdjdjjxdjdjjdjdjdjdjdhdjdjdhd
    8·1 answer
  • A lunch in a fancy restaurant is three times as expensive as a lunch in a cafeeria. The lunch in the fancy restaurant costs 36.
    9·2 answers
  • The sum of two numbers is 83. The sum of 2 times the first number and 3 times the second number
    13·1 answer
  • There are 75 students in a speech contest. Yesterday 1/5 of them gave their speech. Today, 3/5 of the remaining students gave th
    14·1 answer
  • What is the equation, in slope-intercept form, of the perpendicular bisector of the given line segment?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!