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ohaa [14]
2 years ago
13

There are 18 people waiting for the train. Eight-ninths of them have an umbrella. How many people waiting for the train have an

umbrella?​
Mathematics
1 answer:
Pie2 years ago
4 0

Answer:

Step-by-step explanation:

Ok, so there are 18 people. If 8/9 have umbrellas, how many have umbrellas?

There is a simple solution to this.

First, lets find out how much people is 1/9

We can do this by dividing 18 by 9 to get 2

So 1/9 of the group is 2 people.

Now you can use this to find 8/9 by multiplying 2 by 8

This gives you the total of 16

Another way you could do this was take the answer from the first step and subtract that from the 18

9/9 - 1/9 = 8/9   => 18 - 2 = 16

Hope this helps! =)

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Write equations for the horizontal and vertical lines passing through the point (8,5)
almond37 [142]

Answers:

Horizontal Line:  y = 5

Vertical Line:  x = 8

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

Explanation:

All horizontal lines are of the form y = k, for some constant k. We want the horizontal line to pass through (8,5), meaning every point on this horizontal line must have y coordinate 5. Therefore, y = 5 is the equation of the horizontal line. Two such points on this line are (1, 5) and (8, 5). All that matters is the y coordinate is 5. The x coordinate can be anything you want. The slope of any horizontal line is 0.

Flipping things around, all vertical lines will have the x coordinate of each point be the same value. Draw a vertical line through (8,5) and note how each point has x coordinate of 8. Two such points are (8,1) and (8,5). Therefore, the equation of the vertical line is x = 8. The y coordinate can be any value you want. The slope of any vertical line is undefined. Unlike the horizontal line, we cannot write this equation in slope intercept form (namely because the slope isn't defined).

7 0
3 years ago
PLEASE HELP!!!
amid [387]
For your answer you would get 1.40 dollars as your answer or B
4 0
3 years ago
Read 2 more answers
Your teacher has disabled instant marking. Your marks will appear after the due date.
allsm [11]

Answer:

A=384\ cm^2

Step-by-step explanation:

Let the sides of a triangle be 6x,8x and 10x.

Perimeter of the triangle, P = 96 cm

We need to find the area of the triangle.

P = sum of all sides

6x+8x+10x = 96

24x = 96

x = 4

Sides are :

6x = 6(4) = 24 cm

8x = 8(4) = 32 cm

10x = 10(4) = 40 cm

Area,

A=\dfrac{1}{2}\times b\times h\\\\A=\dfrac{1}{2}\times 24\times 32\\A=384\ cm^2

So, the area of the triangle be 384\ cm^2.

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3 years ago
In which step did Melanie make the first error, and which expression should she have written in that step?
Debora [2.8K]

Melanie made the first error in step 4; csc(x) .

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3 years ago
Zarah earns a weekly salary of $545 plus a commission of 8.5% on sales at the clothing store she works at. How much would she ma
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Answer:

$638.50

Step-by-step explanation:

1100*0.085=93.5

545+93.5=638.5

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