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Mars2501 [29]
3 years ago
5

It takes 18 electricians 35 days to wire a new housing subdivision. How many days would 28 electricians require to do the same j

ob?
Mathematics
2 answers:
storchak [24]3 years ago
6 0

Answer:

22.5 days.

Step-by-step explanation:

worty [1.4K]3 years ago
4 0
18 Electricians can complete the wiring in 28 days. We are to find how days will 28 electricians take for the same task.

Note that, if the number of electricians are increased, the number of days will be less to complete the same job. So we can conclude that there is an inverse relation between the Electricians and the number of days.

Let 28 electricians take x days to complete the same task. In an inverse relation, the product of two quantities is always equal to the constant of proportionality.

So, we can write:

18(35) = Constant of proportionality
and
28(x) = Constant of proportionality

From both these equation, we can write:

18(35) = 28(x)

⇒ x = 22.5

So, this means 28 electricians will do the same task in 22.5 days
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A 9.0<br> B 16.0<br> C 25.0<br> D 17.3
adell [148]

Answer:

D. 17.3

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
Dylan just started a running plan where he runs 14 miles the first week and then increases the number of miles he runs by 10% ea
Vladimir79 [104]

Answer:

36 miles

Step-by-step explanation:

Given - Dylan just started a running plan where he runs 14 miles the first

            week and then increases the number of miles he runs by 10% each

            week.

To find - If he keeps up this plan for 11 weeks, how many total miles would  

              Dylan have run ?

Proof -

1st week = 14 miles

2nd week = 14 + 10% of 14 = 14 + 1.4 = 15.4

3rd week = 15.4 + 10% of 15.4 = 15.4 + 1.54 = 16.94

4th week = 16.94 + 10% of 16.94 = 16.94 + 1.694 = 18.634

5th week = 18.634 + 10% of 18.634 = 18.634 + 1.8634 = 20.4974

6th week = 20.4974 + 10% of 20.4974 = 20.4974 + 2.04974 = 22.54714

7th week = 22.54714 + 10% of 22.54714 = 22.54714 + 2.254714 = 24.801857

8th week = 24.801857  + 10% of 24.801857  = 24.801857  + 2.4801857  = 27.2820427

9th week = 27.2820427  + 10% of 27.2820427  = 27.2820427+ 2.72820427  = 30.01024697

10th week = 30.01024697  + 10% of 30.01024697  = 30.01024697 + 3.001024697  = 33.01127167

11th week = 33.01127167  + 10% of 33.01127167  = 33.01127167 + 3.301127167  = 36.31239884 ≈ 36

∴ we get

Total miles Dylan would run = 36 miles.  

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2 years ago
When one element replaces another element in a compound the reaction is a___ reaction
vampirchik [111]

Answer:

single replacement lol

Step-by-step explanation:

7 0
3 years ago
2ab+6a+12abc factored completely
pav-90 [236]
2a(b+3+4bc) 
just take out the greatest common factor  :) 
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3 years ago
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