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Ainat [17]
3 years ago
6

There are 500 computers in an office building. The IT manager randomly chose 40 computers to be inspected for viruses. Of those

inspected, 6 computers had viruses.
What is the best estimate of the percent of computers in the building that have viruses?
Mathematics
2 answers:
tiny-mole [99]3 years ago
6 0
6 out of 40 had viruses.

6 out of 40 = 6/40 = 3/20 = 0.15 = 15%

In the 40-computer sample, 15% of the computers have viruses.

Answer: 15%
Ira Lisetskai [31]3 years ago
6 0

Answer:

15 %

<em>This is the correct answer bevause I just took the test! Good luck!</em>

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Janice wants to create a test containing 20 questions worth 50 points. If Janice creates questions worth either __two points or
Helga [31]
15 two points and 5 two points
8 0
3 years ago
Read 2 more answers
If the length of AC equals 18, what is the length of the midsection DE
Free_Kalibri [48]

Answer:

The length of the midsegment is 9 ⇒ (B)

Step-by-step explanation:

In a triangle,

  • The midsegment is the segment which joining the midpoints of two opposite sides of it
  • The length of the midsegment is half the length of the third side in the triangle which opposite to it

<em>Let us use this rule to solve our question</em>

In Δ AC

∵ DE is the midsegment of it

∵ DE is opposite to the side AC

∴ The length of DE = 1/2 the length of AC

∵ The length of AC = 18

∴ The length of DE = 1/2 × 18

∴ The length of DE = 9

∴ The length of the midsegment is 9

The correct answer is B

7 0
3 years ago
The sum of three numbers is 123. The third number is 4 times the first. The second number is 9 more than the first. What are the
Romashka-Z-Leto [24]

Answer:

Step-by-step explanation:

Let the first number = x

Let the second number = x + 9

Let the third number = 4x

Together they make 123

x + x + 9 + 4x = 123              combine the left

6x + 9 = 123                         Subtract 9 from both sides

6x = 123 - 9

6x = 114                                 Divide by 6

x = 114/6

x = 19

=================

First number = 19

Second number = 19 + 9 = 28

Third number = 4*19 = 76

8 0
3 years ago
Which of these numbers is between 1 and 3/4 ?<br><br>PLEASE HELP
Elanso [62]
Since I don't see attachment, I guess the solution will be as follows:

1 & 3/4 , since 1 = 4/4, then it could be rewritten :


4/4 & 3/4, hence between these 2 fraction there is 2/4 or 1/2.
5 0
3 years ago
What is the equation of a line perpendicular to y=-2/5X-1 that passes through (2,-8)
AysviL [449]

Answer:

y=\frac{5}{2}x-13

Step-by-step explanation:

Given the equation

y=-\frac{2}{5}x-1

comparing the equation with the slope-intercept formy=mx+b

Here,

  • m is the slope
  • b is the intercept

so the slope of the line is m = -2/5

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line,

so  the slope of the perpendicular line will be: 5/2

Therefore, the point-slope form of the equation of the perpendicular line that goes through (2,-8) is:

y-y_1=m\left(x-x_1\right)

y-\left(-8\right)=\frac{5}{2}\left(x-2\right)

y+8=\frac{5}{2}\left(x-2\right)

subtract 8 from both sides

y+8-8=\frac{5}{2}\left(x-2\right)-8

y=\frac{5}{2}x-13

8 0
3 years ago
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