savannahalise savannahalise

13-02-2018
Mathematics

contestada

the time it takes to lay a sidewalk of a certain type varies directly as the length and inversely as the # of men working. If eight men take 2 days to lay 100 ft, how long will it take 3 men to lay 150 ft??

Respuesta :

calculista calculista

13-02-2018

If 8 men ----------------------------- >take 2 days to lay 100 feet

then
they can lay 50 feet in a day.
Each man lays 50/8 or 6.25 feet per day.

3 men can lay 3 * 6.25 = 18.75 feet per day.

150/18.75 = 17.14 days.

the answer is 17.14 days.

Answer Link

Otras preguntas

1 Verify the identity. Show your work. cot θ ∙ sec θ = csc θ

#1. When a bank keeps $12 from a $100 deposit as legal reserves, it is using a. the Federal Reserve System. c. a legal reserve system. b. a fractional reserve s

To prepare for a triathlon, Amanda starts from position A and rides her bike along a straight road for 12 miles to reach position B. At B, she turns left and ri

Which of the following would prevent Japanese intervention in its neighboring island of the Philippines? The Gentlemen’s Agreement/ the Roosevelt Corollary/ the

What set of reflections would carry triangle ABC onto itself? 1) x-axis, y=x, y-axis, x-axis / 2) x-axis, y-axis, x-axis / 3) y=x, x-axis, x-axis/ 4) y-axis, x

In response to Macbeths questions, the witches in Act IV -tell him how to bring banquo back to life. -Call upon the apparitions who answer most of his questions

1) A student uses the substitution method to solve the system of equations below algebraically. 2x - y = 5 3x + 2y = -3 Which equivalent equation could be used?

#1. Why is the slow growth that can result from a contractionary policy a positive effect? A.It can increase interest rates. B.It can decrease available credit.

how many times can 8 go into 66

Rudy is a 52-year-old freelance writer who wants a short-term, low-risk investment with low liquidity. Which of these investment vehicles should he consider? CD