Soutyjennife Soutyjennife

02-09-2016
Mathematics

contestada

Tommy can paint a fence in 9 hours. If his friend Huck helps they can paint it in 1 hour. How fast could Huck paint the fence by himself?

Respuesta :

HomertheGenius HomertheGenius

07-09-2016

Tommy can paint 1/9 of a fence in 1 hour.
With Huck he can paint a whole fence in 1 hour.
x : part of a fence that Huck can paint alone in 1 hour.
1/9 + x = 1
x = 1 - 1/9 = 8/9
1 : 8/9 = 9/8 = 1.125 hours = 1 hour 7 minutes 30 seconds

Answer Link

Otras preguntas

Which letter represents the direction of the centripetal force?

I an confused need help on number 6

Which words in the sentence are the adverb clause? Although my grandmother works, she calls us every week to ask about our lives. A. she calls us B. every week

A toddler takes off running down the sidewalk at 270 ft/min. One minute later, a worried mother runs after the child at 580 ft/min. After how many minutes will

when a large animals eats a plant eater what does it get

Which phrase best describes this type of sentence? Sandy creates her best pieces of art late in the day. prepositional phrase modifying an adverb adverb modifyi

can you express 9/9 as a mixed number why or why not

How do octopus use Newton's third law of motion to escape from enemies

What does the narrator allude to at the end of this sentence from Mark Twain's "The 1,000,000 Bank-Note"? "So I loved her all the more, seeing she could be so c

what's 6-4(6n+7) is greater than or equal to 122