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4vir4ik [10]
2 years ago
10

Pls help will give brainliest

Mathematics
1 answer:
spayn [35]2 years ago
6 0

Answer:

7

Step-by-step explanation:

Let the width of the mechanical pencil lead be w_m and the width of a human hair be w_h. We are trying to find the number of widths of pieces of hair (let that be n) that make it equal to the width of a mechanical pencil lead, so we write the equation w_m=n*w_h. Hopefully, writing an equation makes this easier to understand!

Now, I want n, so I divide be w_h on both sides, substitute, and get that n = w_m/w_h = (7*10^-4)/(1*10^-4)

The 10^-4’s cancel, so we get n = 7/1 = 7.

I hope this helps! :)

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Answer:

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Step-by-step explanation:

8 0
2 years ago
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Please select all the correct choices​
sineoko [7]

The correct choices based on the Segment Addition Postulate are <u>C. WX + XY + YZ = WZ</u> and <u>E. WY + YZ = WZ</u>.

<h3>What is a segment addition postulate?</h3>

A segment addition postulate is a part of a segment line that consists of two endpoints and all of the points between them.

For example, the segment addition postulate of line segment, AC will be defined as the sum of the lengths of the segments, AB and BC being equal to the total length AC.

<h3 />

The possible addition postulates that can be created from WZ are:

WZ = WX + XY + YZ

WZ = WY + YZ

WZ = WX + XZ

Thus, the correct choices of the segment addition postulate are <u>Options C and E</u>.

Learn more about segment addition postulates at brainly.com/question/2134445

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5 0
1 year ago
How do you find the angles in a triangle made up of two isosceles triangles? I know that one is 80 degrees but i don't know how,
Stolb23 [73]
I think i can do it better with a photo of the math problem, but asap u post it, tell me!! I'd love to help!
6 0
3 years ago
10÷7(19+28)×20÷6=???​
Snezhnost [94]

Answer:

109 2/3

Step-by-step explanation:

10 / 7(47) x 20 / 6 =

10 / 329 x 20 / 6 =

32.9 x 20 / 6 =

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Hope that helps!

6 0
2 years ago
If you need any help with fractions I'm here to help. This is for 4th grade and less.
Vlad [161]

Ok, thanks for your support, You're amazing!!!!! :)

4 0
2 years ago
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