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Dmitry [639]
4 years ago
5

Help pls. 10 points.

Mathematics
2 answers:
Elena-2011 [213]4 years ago
4 0
The park's area is 10/24 or 5/12 miles long
Otrada [13]4 years ago
4 0
First question is 5/8 X 2/3  = 10/24  =  5/12 mi2 
second question is false  
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an airplane flies 3300 miles with the wind in 3 hours 18 minutes. it takes 4 hours and 24 mins to make the return flight against
romanna [79]

Answer:

The speed of aeroplane =875 miles/hr and the speed of wind =125 miles/hr.

Step-by-step explanation:

Let’s assume the speed of the plane =x miles/hr

And let the speed of wind =y miles/hr

So, the speed of the aeroplane in the direction of wind =(x+y) miles/hr

Speed of the aeroplane in the opposite direction of wind =(x–y) miles/hr

We know that, distance=speed×time

Then according to the given conditions, we have

3300=(x+y)×(3+(18/60))

here convert 18mins to hour by dividing by 60 and add to 3hrs.

⇒x+y= 3300/3.3

⇒x+y=1000 … (i)

And,

3300=(x-y)×(4+(24/60))

here convert 24mins to hour by dividing by 60 and add to 4hrs.

⇒x-y= 3300/4.4

⇒x-y=750 … (ii)

Adding equation (i) and (ii), we get

2x=1750

⇒x= 1750/2

=875

Substituting the value of x in equation (ii), we get

875−y=750

⇒y=875-750

⇒y=125

Therefore, the speed of aeroplane =875 miles/hr and the speed of wind =125 miles/hr.

3 0
2 years ago
2(3x+7)+x=70<br> That it I need help
mafiozo [28]

2(3x+7)+x=70

mutiply the bracket by 2

(2)(3x)(2)(7)+x= 70

6x+14+x= 70

6x+x+14= 70 ( combine like terms)

7x+14= 70

move 14 to the other side

sign changes from +14 to -14

7x+14-14=70-14

7x= 56

divide both sides by 7

7x/7= 56/7

x=8

Answer: x= 8

4 0
3 years ago
Pls help pls help plsssssssss
Goryan [66]

Answer:

Ava ran faster than Maura.

5 0
3 years ago
Which construction can you use to prove the Pythagorean Theorem based on similarity of triangles?
Rashid [163]

The construction that you can use to prove the Pythagorean Theorem based on similarity of triangles is 2nd construction. Please see the attached file.

 

To add, in mathematics, the Pythagorean theorem, also known as Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It mentions that the sum of the squares of the other two sides is equal to the square of the hypotenuse (the side opposite the right angle).

4 0
3 years ago
Read 2 more answers
Fill in the blank with either "edge" or "vertex" to make a true statement.
andre [41]

9514 1404 393

Answer:

  • H: vertex
  • E: edge

Step-by-step explanation:

A Hamiltonian circuit uses each vertex once and only once. (may repeat edges)

An Euler circuit uses each edge once and only once. (may repeat vertices)

6 0
3 years ago
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