Ask
your own question, for FREE!

Mathematics

OpenStudy (anonymous):

28 men can finish the job in 60 days. At the start of the 16 day, 5 men were laid off and after the 45th, 10 more men were hired. How many days were delayed in finishing the job? Please explain, step by step.

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

really? i am going to change my name to i hate math

OpenStudy (anonymous):

i am going to suggest this although there is probably a snappier way. 28 men in 60 days to one job so each man and do \[\frac{1}{28\times 60}=\frac{1}{1680}\] of the job per day

OpenStudy (anonymous):

then the equation becomes \[\frac{15\times 28}{1680}+\frac{23\times 30}{1680}+\frac{33\times x}{1680}=1\]

OpenStudy (anonymous):

or if you prefer \[33x+1110=1680\] and thus \[x=\frac{190}{11}=17.27\]so the total time was 45+17.27=62.27 and therefore the delay was 2 + (say 3) days

OpenStudy (anonymous):

from where did you base 33x+1110=1680?

Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Join our real-time social learning platform and learn together with your friends!

Latest Questions

alexgame:
Solve for x: negative 6 over 5, multiplied by x minus 4 equals negative 46

8 minutes ago
7 Replies
3 Medals

Naciama:
Sarah has $8 and wants to buy a combination of cupcakes and fudge to feed at least four siblings.

15 minutes ago
6 Replies
2 Medals

sablack6:
Which sentence from the passage best shows that Elinor Ostromu2019s work demonstr

27 minutes ago
1 Reply
0 Medals

alexgame:
The sum of two numbers is 47. The greater number is 9 more than the smaller number.

29 minutes ago
29 Replies
2 Medals

inkandfable:
Yuto and Riko went for a bike ride on the same path. When Riko left their house, Yuto was 5.

47 minutes ago
3 Replies
1 Medal

descudder:
Why did some people in China consider Mao Zedong a despot? A. The Chinese Communist Party harassed and tortured people who were against Mao's ideas.

52 minutes ago
1 Reply
0 Medals

jacktrainer:
can you guys give me a sentence using subject verb on a sentence

55 minutes ago
1 Reply
0 Medals

hannahbrooke17:
In three to four sentences, explain how you can come to a text-based discussion well prepared and ready to collaborate.

53 minutes ago
1 Reply
0 Medals

levyjutsu:
ane and Jill want their mom to ride the rollercoaster with them, but she thinks it will be too fast.

1 hour ago
1 Reply
1 Medal