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2 years ago

8 workers complete the construction of wall 6 days. How many workers are needed to complete the construction in 4 days?

Mathematics

1 answer:

ElenaW [278]2 years ago

8 0

Answer:

I came up with -12

Step-by-step explanation:

8 workers = 6 days to complete

x workers = 4 days faster to complete

6/4=1.5 days faster

1.5 x 8 = 12 workers needed to complete the wall in fours days

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The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to det

Maru [420]

Answer:

0.077994

Step-by-step explanation:

Given that the owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.

$H_0: Mean = 30\\H_a: Mean >30$

(Right tailed test)

Sample size = $n=250$

Sample mean = 30.45

Mean difference = $30.45-30=0.45\\$

Sample std dev s = 5

Sample std error = $\frac{5}{\sqrt{n} } =\frac{5}{\sqrt{250} } \\=0.3163$

Test statistic = Mean diff/std error = $=\frac{0.45}{0.3163} =1.423$

Since population std deviation is not know we use t test

p value = $0.077994$

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3 years ago

What is the value of the digit 3 in the # 2314^5

Nana76 [90]

Are you asking like thousands or something else?

3 0

3 years ago

When the expression 3(n + 7) is evaluated for a given value of n, the result is 33. What is the value of n.

Scorpion4ik [409]

Answer:

i think n = 4

Step-by-step explanation:

3(n+7) = 33

3n+21 = 33

3n = 12

n = 4

4 0

2 years ago

Read 2 more answers

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Natali [406]

Answer:

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Step-by-step explanation:

(1000+(230*24))-5800=720

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3 years ago

What is 27 percent of 190 bushels?

Neko [114]

Multiply 190 by 0.27 and you should get your answer

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3 years ago