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ryzh [129]
3 years ago
10

All members of a construction crew work at the same pace. If it takes 4 workers to pour a foundation in 32 hours, how long will

it take if there were half as many workers?
Mathematics
2 answers:
vova2212 [387]3 years ago
5 0
It will take 64 hours because there are half the workers that doubles the work
Xelga [282]3 years ago
3 0
64 hrs because if 4 workers takes 32 hours than half of four which is 2 will put the foundation in double the time which is 64 hours.
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This one is a doozy for me, need help please
Maksim231197 [3]

Answer:

The correct answer is B

Step-by-step explanation:

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2 years ago
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Will give brainiest if right. The table below shows worldwide smartphone sales by the vendor. Based on the information in the ta
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D. Apple’s market share fell about 4% from 2012 to 2013.

7 0
3 years ago
A class of 33
pogonyaev

Answer:

42.3% or 11/26

Step-by-step explanation:

IN order to calculate the percentage of people that voted for Candidate A you just need to add up the number of votes for that candidate and then multiply it by 100 and divided by the total votes.

There were 26 voters, since there were 7 that didn´t vote for anyone, so we have that 11 voted for Candidate A:

\frac{11}{x} =\frac{26}{100}\\ x= \frac{11*100}{26}\\ x=42.30

So the percentage of voters that voted for candidate A was 42.3 percent.

6 0
4 years ago
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If a = 4, b = 6 and C = -3, Find the values <br> of <br> 3ac<br> ____<br> B²-C²
madreJ [45]

The value of the expression 3ac - b² - c² is -61.

<h3>What is an expression?</h3>

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

The expression will be solved as below:-

3ac - b² - c² =  ( 3 x 4 x -3 ) - ( 4 )² - ( -3 )²

                    =   ( -36 - 16 - 9 )

                    =   ( -61 )

Therefore, the value of the expression 3ac - b² - c² is -61.

To know more about an expression follow

brainly.com/question/723406

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7 0
2 years ago
If an=24, which recursive formula could represent the sequence below? ...,24,88, 664, 8408A) An=(An-2)^2 + An-1 ; A1=2B) An= 3An
Rudik [331]

When we substitute n = 4, we get...

a_{n-3}=a_1\\ \\ a_{n-2}=a_2\\ \\ a_{n-1}=a_3\\ \\ a_n=a_4

Comparing the given sequence: 24, 88, 664, 8408, we get

a_{n-3}=a_1=24\\ \\ a_{n-2}=a_2=88\\ \\ a_{n-1}=a_3=664\\ \\ a_n=a_4=8408

We need to substitute the above values in each option and check which is TRUE.

----

<u>Option A</u>

a_n=(a_{n-2})^2+a_{n-1}, a_1=2\\ \\ a_n=(88)^2+664=7744+664\\\\a_n=8408 (TRUE)

<u>Option B</u>

a_n=3a_{n-1}+16\\ \\ a_n=3(664)+16\\\\a_n=2008 (FALSE)

<u>Option C</u>

a_n=(n)a_{n-1}-8\\ \\  a_4=(4)a_3-8=4(664)-8\\\\a_4=2648 (FALSE)

<u>Option D</u>

a_n=2a_{n-2}+7a_{n-1}\\ \\ a_n=2(88)+7(664)\\ \\ a_n=4824(FALSE)

Conclusion:

Option A is the correct answer.

6 0
4 years ago
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