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Slav-nsk [51]
3 years ago
15

The length of the entire border of the Unites States is approximately 32,000 miles, 5 8 of which is coastline. How long is the c

oastline of the U.S., and how long are the land boundaries?
Mathematics
1 answer:
Aleksandr [31]3 years ago
7 0

Answer:the coastline is 20000 miles.

The land boundaries are 12000 miles.

Step-by-step explanation:

The length of the entire border of the Unites States is approximately 32,000 miles.

5/8 of the entire length is the coastline. It means that the length of the coastline of the U.S would be

5/8 × 32000 = 20000 miles.

Therefore, the length of the boundaries of the US would be

32000 - 20000 = 12000 miles.

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30.87 ✅

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

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4 0
2 years ago
Which of these values represents the longest period of time?
Burka [1]
D......................
3 0
3 years ago
Read 2 more answers
Please help me as fast as you can. thanks
Angelina_Jolie [31]

Answer:

<h2><DEF = 40</h2><h2><EBF = <EDF = 56</h2><h2><DCF = <DEF =40</h2><h2><CAB = 84</h2>

Step-by-step explanation:

In triangle DEF, we have:

<u>Given</u>:

<EDF=56

<EFD=84

So, <DEF =180 - 56 - 84 =40 (sum of triangle angles is 180)

____________

DE is a midsegment of triangle ACB

( since CD=DA(given)=>D is midpoint of [CD]

and BE = EA => E midpoint of [BA] )

According to midsegment Theorem,

(DE) // (CB) "//"means parallel

and DE = CB/2 = FB =CF

___________

DEBF is a parm /parallelogram.

<u>Proof</u>: (DE) // (FB) ( (DE) // (CB))

AND DE = FB

Then, <EBF = <EDF = 56

___________

DEFC is parm.

<u>Proof</u>: (DE) // (CF) ((DE) // (CB))

And DE = CF

Therefore, <DCF = <DEF =40

___________

In triangle ACB, we have:

<CAB =180 - <ACB - <ABC =180 - 40 - 56 =84(sum of triangle angles is 180)

HOPE \:  THIS \:  HELPS.. GOOD  \: LUCK!

7 0
3 years ago
A community group bought 30 tickets to an amusement park at a total cost of $810. They bought x students for $25 each and y adul
allsm [11]
A community group bought 30 tickets to an amusement park at a total cost of $810. They bought x student tickets for $25 each and y adult tickets for $30 each.
***
let x=number of student tickets bought
30-x=number of adult tickets bought
..

25x+30(30-x)=810
25x+900-30x=810
5x=90
x=18
30-x=12
number of student tickets bought=18
number of adult tickets bought=12

Hope this helps!
8 0
3 years ago
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