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
zaharov [31]
2 years ago
13

It takes Ms. Campbell 5 times as long as it takes Ms. Dorsey to paint a room. If Ms. Dorsey

Mathematics
1 answer:
Aliun [14]2 years ago
7 0

Answer:

Dorsey = 4.8 hours

Campbell = 24 hours

Step-by-step explanation:

It takes "x" hours for Dorsey

So, it will take 5 times more for Campbell, so

It takes "5x" hours for Campbell

Rate is inverse of time, so rates are:

Dorsey: 1/x

Campbell: 1/5x

We know Rate * Time = Work

When together, it takes 4 hours to finish a work, so we can write:

(\frac{1}{x}+\frac{1}{5x})4=1

Solving for x, we get the time of Dorsey:

(\frac{1}{x}+\frac{1}{5x})4=1\\(\frac{1}{x}+\frac{1}{5x})=\frac{1}{4}\\\frac{5+1}{5x}=\frac{1}{4}\\\frac{6}{5x}=\frac{1}{4}\\5x=24\\x=4.8

Dorsey takes 4.8 hours alone

Campbell takes 4.8 * 5 = 24 hours alone

You might be interested in
Use the following information to find x. Write the value of the variable.
zhuklara [117]

Step-by-step explanation:

can you elaborate on this problem a bit more? I just want to give you an accurate anwser

3 0
2 years ago
A 18,000 gallon swimming pool contains 7,000 gallons of water when a hose is placed into the pool and begins adding water at a r
SOVA2 [1]
In 3 hours it will be 10,300 gallons of water because add 7000 + 3300 equals 10,300
7 0
2 years ago
U.S. Postal Service regulations state that a package can be mailed using Parcel Post rates if it weighs no more than 80 pounds.
Citrus2011 [14]

5 because 80/14 is 5.714

3 0
3 years ago
Cuántos dólares se necesitan para comprar Venezuela pregunta seria
Nata [24]

Answer:

About $150 billion US dollars to buy Venezuela

Step-by-step explanation:

It's a big place

3 0
3 years ago
Help quick pleaseeee
ehidna [41]

Answer:

x= 3.096

Step-by-step explanation:

divide both sides by 5: 3^(x-1)= 10

then take the log to get log_3 (10) = x-1 = 2.096

x= 3.096

4 0
2 years ago
Other questions:
  • A newborn weighs 8 pounds and 5 ounces. There are 453.59 grams per pounds. What is the infant's weight in grams ?
    5·1 answer
  • Is this the correct graphing for the inequality 2c&lt;=400?<br> please help i’ll mark brainliest!!!
    14·1 answer
  • Which numbers is 10 times greater than 400
    14·1 answer
  • What would be the answer to this question?
    5·1 answer
  • Which statement best describes putting a “hold” on a check?
    5·1 answer
  • 16x^2+4x^4-8-4/9x^2+8-16/9=0
    5·1 answer
  • Susan is 3 years more than twice her brother’s age. If her brother is m years old, which expression describes Susan’s age?
    12·1 answer
  • Q. As a project manager, you need to plan production runs over the next 3 weeks. If
    11·1 answer
  • A 120 pack of paper towels last 1/2 a year. How many paper towels per month did we use
    10·2 answers
  • Adding subtracting complex numbers<br> (5-3i) - (-2+4i)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!