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
Triss [41]
3 years ago
6

It takes 636363 minutes for 444 people to paint 999 walls. how many minutes does it take 777 people to paint 444 walls? minutes

Mathematics
1 answer:
Alex777 [14]3 years ago
5 0
Let t=time, p=people, and w=walls.

We know that the time it takes is directly proportional to the length of the wall but inversely proportional to the number of people working. That is 
     t=k\cdot \frac{w}{p}

We solve for the constant of proportionality, k.
     k=\frac{t\cdot p}{w}

The initial values for k are the same for the final values. That is
     \frac{t_1\cdot p_1}{w_1}=\frac{t_2\cdot p_2}{w_2}

     \frac{63\cdot 4}{9}=\frac{t_2\cdot 7}{4}

     t_2=\frac{4\cdot 63\cdot 4}{7\cdot 9}=16

It will take 16 minutes.      

    

You might be interested in
On Friday, 20 dogs attended doggy daycare. On Saturday, 26 dogs attended. What is the percent of change?
Sati [7]

Answer:

Step-by-step explanation:

%change=100(final-initial)/(initial)

%change=100(26-20)/20

%change=30%

Since this is positive the number of dogs increased by 30%

5 0
3 years ago
A what is a letter or symbol that represents some unknown value
aleksley [76]
Unknown values can be taken as anything , for example : the most common is x for unknown values and sometimes, for angles we can take θ(theta).

it is totally upto you!
8 0
3 years ago
Read 2 more answers
The U.S. Department of Transportation estimates that citizens own more than 12,720,000 registered boats. Which shows this number
nika2105 [10]
A. 10000000  It's because 2720000 is smaller than 5000000.  
I hope I helped:)
4 0
3 years ago
Read 2 more answers
HELP FAST PLEASE! FOR BRAINLIEST!!
Gekata [30.6K]

Answer:

1. C-surface area

2. The formula V = B x h is not suitable, because the surface area of wrapping paper needed to be calculated, not the volume.

V = Ph + 2B = 15x(5+6+9) + 2x 9x3/2 = 327

3. B: Base area

   H: Height of solid

4. She said V =220, while V_real = 7x6x4 =168

=> She is wrong

5. Check the Pythagorean theorem 3^2+4^2 =9+16 =25 =5^2

=> Right triangle.

=> Area = 3x4/2 =6

4 0
3 years ago
Jessica wants to buy a new chair that has a regular price of $75.00 this week the chair will be on sale at a 12% discount how mu
Novosadov [1.4K]

Answer: $9.

Step-by-step explanation:

It is given that,

Regular price of a new chair = $75.00

This week the chair will be on sale at a 12% discount. So,

Rate of discount = 12%

We need to find the amount of money that will Jessica save if she buys the chair this week.

Discount=12\%\text{ of }\$75.00

Discount=75\times \dfrac{12}{100}

Discount=9

Therefore, Jessica will save $9 if she buys the chair this week.

8 0
3 years ago
Other questions:
  • Gabriela buys a basket of coconuts on sale for $22 before tax. the sales tax is 12%.
    13·1 answer
  • Aunt Becky gave 5/6 of a cup of pudding to each of her 3 nephews. How many cups of pudding did she give out?
    8·1 answer
  • Use the binomial theorem to expand the following binomial expressions.
    14·1 answer
  • Kolby decided he wanted to go to the amusement park. The amusement park charges $8.00 for entry and $1.40 for each ride.
    7·1 answer
  • Hey can you help me fast!!
    10·1 answer
  • 32.25 written as a mixed number
    15·2 answers
  • The area of triangle ABC ABC is 18 cm2. Side AC=4x AC = 4 x and side AB=x+3 AB = x + 3 . Given that angle A=30∘ , calculate the
    6·1 answer
  • Which of the following is the solution<br><br> |x-15|&lt;4
    13·1 answer
  • Help plz! I will give you brainliest if ur right:)
    8·2 answers
  • What is the value of 8b - 3c when b = 3 and c = 4? ​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!