3 years ago

30men can finish 1/7of a work in 2days.18men will do othe remaining work in ?

1 answer:

7 0

7/7-1/7=6/7 is the rest of work
1/7 work takes 2days
6*1/7=6/7 work takes 6*2days=12days
30 men takes 12 days to finish the rest of work (6/7)
18 men takes 18*12/30= 7.2days

You might be interested in

Please help me thank you!

Tcecarenko [31]

Answer:

46.7%

Step-by-step explanation:

The fraction of youths preferring printedbooks

= 21/(21+24)

= 21/45

= 21 *100 / 45

= 46.67%

6 0

2 years ago

Keith bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $150 more than the desktop. He pa

ss7ja [257]

Answer: desktop = $1750, laptop = $1900

<u>Step-by-step explanation:</u>

Let x represent the cost of the desktop

then x + 150 is the cost of the laptop.

.07x + .055(x + 150) = 227

.07x + .055x + 8.25 = 227

.125x = 218.75

x = 1750

desktop (x) = $1750

laptop (x + 150) = $1750 + $150 = $1900

5 0

3 years ago

Emma ran 3 miles in 28 minutes. How long would it take her to run 6 miles

gayaneshka [121]

Answer:

56 minutes

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Find the factor of each ff. <br>6z²+12z+18

frosja888 [35]

Answer:

Step-by-step explanation:

6z² + 12z +1 8

= 6(z^2 + 2z + 3).

That's it.

8 0

2 years ago

Spell out the name of a planet with a 29-day year

Jet001 [13]

The answer would be mercury.

6 0

3 years ago