trautlashley3152 trautlashley3152
  • 04-02-2021
  • Mathematics
contestada

It would take Steve 4 hours to paint a room. If Andre helps him, they can finish painting the room in 3 hours. How long would Andre take to paint the room by himself?

Respuesta :

samuelonum1
samuelonum1 samuelonum1
  • 07-02-2021

Answer:

12 hours

Step-by-step explanation:

Given data

Steve= 4 hours

Steve and Andrea= 3 hours

Applying the combined work formula

1/A+1/B= 1/T

1/4+1/B= 1/3

solve for B

B+4/4B= 1/3

cross multiply

3(B+4)= 4B

3B+12= 4B

12= 4B-3B

12= B

Hence Andrea will spend 12 hours alone

Answer Link

Otras preguntas

What is an anticodon?
24. Na or K-Which is bigger in atomic size? The metallic character of an element depend on thesize of atom. Explain.​
Continue to name one point that is a solution to the inequality and one point that is not a solution. y ≤ 3x + 4
5•s indicate multiplication using parentheses and then without using a raised dot or parentheses.
40 points! Write a question for each type that you would ask one of the attorneys if you were a justice hearing oral arguments in United States v. Nixon: a.Ques
6 7 2 4 6 6 9 5 3 3 work out the median​
what long-term effects did social isolation have on the rhesus monkeys in the Harlows' experiments?​
Why do parents tell us to wear what they what and not except what we want to wear?
‘All sport should be fun, fair and open to everyone. These days, sport seems to be more about money, corruption and winning at any cost.’
Why did the British help the Arabs break free from the Ottoman Empire?