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3 years ago

The time (t) it takes to clean an office building is directly related to the number of people (p) working.

Mathematics

2 answers:

cricket20 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

The time is inversely related to the number of people working so that as the number of people working increases, the time required decreases

t = k p

divide both sides by p

t/p =k

aleksandr82 [10.1K]3 years ago

4 0

Answer:

The correct answer is c. T/p=k

Step-by-step explanation:

If time (t) is directly related to the number of people (p)

We can say that

t= k p or k=t/p or p= t/k

The options given are:

P/t=k incorrect

K/t=p incorrect

<u>T/p=k</u> correct

P/k=t incorrect

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3 years ago

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3 years ago

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Len [333]

Answer:

$x = \frac{15}{4}$

Step-by-step explanation:

b) set up equations so they are equal to each other,

$2x - 2 = - 3x + 12$

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3 years ago

If z=2.5, x=102 and x=100, what is s?

Bad White [126]

I believe the problem ask for s which is the standard deviation. We must recall that the formula for z statistic is stated as:

z = (x – x over bar) / s

Where,

z = z statistic = 2.5

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x over bar = the sample mean or sample average = 100

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Rewriting the equation in terms of s:

s = (x – x over bar) / z

Substituting the given values into the equation:

s = (102 – 100) / 2.5

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3 years ago