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lutik1710 [3]
2 years ago
5

Find the unknown value of 5/25 = 13/

Mathematics
2 answers:
Pepsi [2]2 years ago
8 0
The unknown value is 65. All of my work is in this image. And if my answer was helpful, please choose my answer as the brainliest one. Thank you!!!

Snowcat [4.5K]2 years ago
7 0
65, since 25/5=5.
13*5=65
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A plane flies from Houston to nyc in 4hours the distance it travelled was 1627miles what was the average speed of the plane
Tamiku [17]
406.75 since the equation for speed is distance over time so you would do 1627 divided by 4
8 0
3 years ago
What number must you add to the polynomial below to complete the square? x2 - 3x
USPshnik [31]
The coefficient of the x-term is -3. Add the square of half of that.
.. (-3/2)² = 9/4 . . . . . . the number you need to add.

x² -3x +9/4 = (x -3/2)²

_____
If the x² term has a coefficient other than 1, you need to factor that out first and deal with the remaining binomial. For example,
.. 2x² -6x = 2(x² -3x)
For this you would need to add 9/4 inside parentheses to get
.. 2(x² -3x +9/4) = 2(x -3/2)²
Of course, to keep the original value, you would need to subtract 2*(9/4) outside parentheses.
.. 2x² -6x = 2(x -3/2)² -9/2
7 0
3 years ago
Leonard did this work to solve an equation. Did he make an error?
raketka [301]
Leonard made an error when he multiplied a negative by a negative and got a negative
It should look like this:
-20x + 35 + 8 = 3x
Hope this helps!
7 0
2 years ago
What is the value of x?
vitfil [10]

Answer:

5 cm

Step-by-step explanation:

We know these are similar triangles, so we can use ratios of side lengths

x/40 = 4/32

Using cross products

32x = 4*40

32x = 160

Divide each side by 32

32x/32 = 160/32

x =5

3 0
3 years ago
the exterior angle of a regular polygon is one third the size of its interior angle. how many sides does the polygon have
Aloiza [94]

Answer:

8 sides

Step-by-step explanation:

let x be the exterior angle then 3x is the interior angle

interior angle + exterior angle = 180° , then

x + 3x = 180

4x = 180 ( divide both sides by 4 )

x = 45

the sum of the exterior angles of a polygon = 360°

since the polygon is regular with each exterior angle = 45°, then

number of sides = 360° ÷ 45° = 8

7 0
2 years ago
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