01-03-2015
Mathematics

contestada

Please help!!!! Hannah can paint a room in 9 hours. Destiny can paint the same room in 15 hours. How long does it take for both Hannah and Destiny to paint the room it they are working together?

Respuesta :

Аноним Аноним

01-03-2015

9/2= 4.5
15/2= 7.5
4.5+7.5=12

12 Hours

Answer Link

Otras preguntas

How far is (-3,-4) from (4,-4)

In a huge chess tournament, 45 matches were played. Find out how many people were involved if it is known that each participant played one game with every other

_____ glands secrete an oily substance into the hair follicles and onto the surface of the skin.

Which of the following values complete the square, or creates a perfect square trinomial, for x^2 +6x + what

What ideas about medicine were developed during the time of the Muslim empire

Find the slope of the line. A. 1/3 B. -1/3 C. 3 D. -3

were there any ideas prevalent during the Renaissance and or the Reformation with which people who believe in natural rights might not agree? What are these ide

What is the first term in the expansion of the binomial (3x+y)^4 ?

What did they actually eat at the first thanksgiving?

Using any form of flattery in an appeal is an example of the exchange influence tactic. a. True b. False