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
masha68 [24]
3 years ago
5

Fred can paint a house in 10 hours. Together, pat and Fred can paint a house in 8 hours. Which equation, when solved will produc

e the number of hours need for pat to paint the house alone
Mathematics
1 answer:
sattari [20]3 years ago
8 0

Answer:

Pat t2 = 40 hrs

Step-by-step explanation:

Given:-

- Fred can paint a house in t1 = 10 hours.

- Pat can paint a house in t2 hours.

- pat and Fred can paint a house in T = 8 hours.

Find:-

Which equation, when solved will produce the number of hours need for pat to paint the house alone

Solution:-

- The number of people working on a particular activity " painting a house " is inversely proportional to time taken to complete the activity. tn = T. The relation for individual time taken ti to complete an activity.

                              Sum ( 1 / ti ) = 1 / T

Where, ti = The individual time for (ith) person

            T = The total time taken to complete the time by i = n number of people.

- For n = 2,

                              1/t1 + 1/t2 = 1/T

                              1/10 + 1/t2 = 1/8

                              1 / t2 = 0.025

                              t2 = 40 hrs

- It takes Pat t2 = 40 hrs to complete painting the house.                        

You might be interested in
1. When the discriminant is grater than zero, the equation has:
Yakvenalex [24]
No spoliation skdnfnd
3 0
3 years ago
What decimal part of 80 is 90
Elodia [21]
88.89% of 90 would be 80
6 0
3 years ago
avocados cost $3 per pound. write and graph an equation in two variables that represents the cost of buying avocados
EastWind [94]
Pounds will be represented by x and the cost will be represented by y. The equation is Y=3x. For the graph just use substition for x and then calculate the outcome and graph it.
4 0
3 years ago
What is the cross section shown below?
goldenfox [79]
<h3>Answer: Choice A) circle</h3>

Explanation:

Imagine that white rectangle as a blade that cuts the cylinder as the diagram shows. If you pull the top cylinder off and examine the bottom of that upper piece, then you'll see a circle forms. It's congruent to the circular face of the original cylinder. This is because the cutting plane is parallel to both base faces of the cylinder. Any sort of tilt will make an ellipse form. Keep in mind that any circle is an ellipse, but not vice versa.

Another example of a cross section: cut an orange along its center and notice that a circle (more or less) forms showing the inner part of the orange.

Yet another example of a cross section: Imagine an egyptian pyramid cut from the top most point on downward such that you vertically slice it in half. If you pull away one half, you should see a triangular cross section forms.

3 0
4 years ago
Read 2 more answers
(x+4)(x+11)=0 <br> what do i do
Talja [164]
FOIL first outer inner last it’s distribution
8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the value of x that makes the quadrilateral a parallelogram <br><br> 2x+5=3x
    10·2 answers
  • What is the domain of the function f(x)=2x+5
    9·2 answers
  • You need to measure the width of a window, but you do not have a ruler. You use a sheet of paper that is 8.5 inches wide. It fit
    13·2 answers
  • Question 2
    10·1 answer
  • Use Cavalieri’s Principle to calculate the exact volume of an oblique cylinder with a radius of 5 inches and a height of 16 inch
    5·2 answers
  • Type the expression that results from the following series of steps:
    9·1 answer
  • Find the value of p when 3P = 1/9​
    14·2 answers
  • A baker knows that the daily demand for mango pies is a random variable that follows the normal distribution with a mean of 45.4
    10·1 answer
  • Solve the following problems:
    15·1 answer
  • Reagan solved 5.25 ÷ 5 and got 105. What did Reagan do wrong?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!