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3 years ago

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A laser printer has 300 sheets of paper and is printing at a rate of 12 pages per minute how many sheets of paper will be left i

n the printer in two and one half minutes of the printer is continuously printing

1 answer:

inysia [295]3 years ago

8 0

It has used 36 pages, so it would have 264 pages :) :) :)

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A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 45.0 and 55.

ra1l [238]

Answer:

0.025

Step-by-step explanation:

Hello!

Given that the classes are uniformly distributed between 45.0 and 55.0 minutes, the propability distribution will be:

$P(x)=\frac{1}{55-45} = \frac{1}{10}$

Now, we are looking for a probability P(51.5<x<51.75) which can be computed as:

$P(51.5$

Therefore:

P(51.5<x<51.75) = 0.025

or

P(51.5<x<51.75) = 2.5%

<em><u>I strongly believe that the answer for both questions have the same answer, I believe this because there is no additional info for a given class or selecting a class. I think both probabilities are the same.</u></em>

7 0

3 years ago

65 over 100 of what number is 780

skad [1K]

Step-by-step explanation:

$\frac{65}{100} \times x = 780 \\ \\ \therefore \: x = 780 \times \frac{100}{65} \\ \\ \therefore \: x = 60 \times \frac{100}{5} \\ \\ \therefore \: x = 60 \times 20 \\ \\ \therefore \: x = 1200 \\$

Hence, 65 over 100 of 1200 is 780.

8 0

3 years ago

The graph shows the mass of a radioactive substance as a function of time

Simora [160]

To know the initial amount of the radioactive substance, you should read the graph in the y - axis when the x = 0, because at x = 0 this means the intial point of the graph or the initial amount of the substance. so at x = 0 the y = 45 so the initial amount is 45 g

5 0

3 years ago

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Help on the last thx!

xeze [42]

Looks like you did it backwards, hope this was helpful!!

8 0

3 years ago

Which of the following is a solution to 3×2= -4+8x?

IceJOKER [234]

Answer:

1.25 or 5/4 or 1 1/4

Step-by-step explanation:

That is the only number that can replace x to make the equation equal.

3 0

3 years ago

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