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Phantasy [73]
3 years ago
12

After dans holiday. Dan has 50 new email messages in his inbox . 13 of them are attachements. what proportion of the email messa

ges have attachments. Give ur answer in percentages.
Mathematics
1 answer:
dimulka [17.4K]3 years ago
6 0

Answer:

26%

Step-by-step explanation:

Given that Dan has 59 new email messages and 13 have attachment then the proportion that have attachments may be expressed as a ratio of the number with attachments to the total number of emails.

Hence proportion of the email messages have attachments as a percentage

= 13/50 * 100%

= 26%

This means that 26% of the emails received have attachments

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Simplify the expression -3/8(-4y+z)
Rzqust [24]

Answer:

3/2y-3/8z

Step-by-step explanation:

-3/8(-4y)-3/8z

5 0
2 years ago
What is the equation of the line that passes through (0,3) and (-5,3)
ddd [48]

Answer:

y=+3

Step-by-step explanation:

the equation of a line is y=mx+c

where m is the slope and c is the y-intercept.

First, let's find what m is, the slope of the line...

The slope of a line is a measure of how fast the line "goes up" or "goes down". A large slope means the line goes up or down really fast (a very steep line). Small slopes means the line isn't very steep. A slope of zero means the line has no steepness at all; it is perfectly horizontal.

For lines like these, the slope is always defined as "the change in y over the change in x" or, in equation form:

So what we need now are the two points you gave that the line passes through. Let's call the first point you gave, (0,3), point #1, so the x and y numbers given will be called x1 and y1. Or, x1=0 and y1=3.

Also, let's call the second point you gave, (-5,3), point #2, so the x and y numbers here will be called x2 and y2. Or, x2=-5 and y2=3.

Now, just plug the numbers into the formula for m above, like this:

m=\frac{3-3}{-5-0}

or

m=\frac{0}{-5}

or

m=0

So, we have the first piece to finding the equation of this line, and we can fill it into y=mx+c like this:

y=0x+c

Now, what about c, the y-intercept?

To find c, think about what your (x,y) points mean:

(0,3). When x of the line is 0, y of the line must be 3.

(-5,3). When x of the line is -5, y of the line must be 3.

Because you said the line passes through each one of these two points, right?

Now, look at our line's equation so far: y=0x+c. c is what we want, the 0 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the two points (0,3) and (-5,3).

So, why not plug in for x and y from one of our (x,y) points that we know the line passes through? This will allow us to solve for c for the particular line that passes through the two points you gave!.

You can use either (x,y) point you want..the answer will be the same:

(0,3). y=mx+c or 3=0x 0+c, or solving for c: c=3-(0)(0). c=3.

(-5,3). y=mx+c or 3=0x -5+c, or solving for c: =3-(0)(-5). c=3.

See! In both cases we got the same value for c. And this completes our problem.

The equation of the line that passes through the points

(0,3) and (-5,3)  

is  

y=+3

Hope this helps :)

7 0
3 years ago
Read 2 more answers
What is the y intercept of the line whose equation is y=1/x-3
son4ous [18]

Answer:

x-intercept: (1/3,0)

y-intercept: none

6 0
3 years ago
Read 2 more answers
The image below is a triangle drawn inside a circle with center O:Which of the following expressions shows the area, in square i
zaharov [31]
The Area of a circle =π.R² (R=radius). & π 3.14

Since you didn't give the length of the Radius, then the area of the circle=3.14R²
5 0
3 years ago
What is the answer to 12 + 4²
Musya8 [376]

You would use order or operations to solve this problem

4 to the second power is 16 -------> 12+16= 28


Your answer would be 28

7 0
3 years ago
Read 2 more answers
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